49689578507229 has 10 divisors (see below), whose sum is σ = 74227641967710. Its totient is φ = 33126385671432.

The previous prime is 49689578507203. The next prime is 49689578507263. The reversal of 49689578507229 is 92270587598694.

49689578507229 is a `hidden beast` number, since 4 + 9 + 6 + 89 + 5 + 7 + 8 + 507 + 2 + 29 = 666.

49689578507229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43087710759129 + 6601867748100 = 6564123^2 + 2569410^2 .

It is not a de Polignac number, because 49689578507229 - 2¹⁷ = 49689578376157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81), and also a Moran number because the ratio is a prime number: 613451586509 = 49689578507229 / (4 + 9 + 6 + 8 + 9 + 5 + 7 + 8 + 5 + 0 + 7 + 2 + 2 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49689578507279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 306725793174 + ... + 306725793335.

It is an arithmetic number, because the mean of its divisors is an integer number (7422764196771).

Almost surely, 2^{49689578507229} is an apocalyptic number.

It is an amenable number.

49689578507229 is a deficient number, since it is larger than the sum of its proper divisors (24538063460481).

49689578507229 is an equidigital number, since it uses as much as digits as its factorization.

49689578507229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613451586521 (or 613451586512 counting only the distinct ones).

The product of its (nonzero) digits is 5486745600, while the sum is 81.

The spelling of 49689578507229 in words is "forty-nine trillion, six hundred eighty-nine billion, five hundred seventy-eight million, five hundred seven thousand, two hundred twenty-nine".