49878854329 has 8 divisors (see below), whose sum is σ = 49950168840. Its totient is φ = 49807572096.

The previous prime is 49878854317. The next prime is 49878854353. The reversal of 49878854329 is 92345887894.

It can be written as a sum of positive squares in 4 ways, for example, as 9766775929 + 40112078400 = 98827^2 + 200280^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49878854329 - 2²⁹ = 49341983417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49878854309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6177507 + ... + 6185575.

It is an arithmetic number, because the mean of its divisors is an integer number (6243771105).

Almost surely, 2^49878854329 is an apocalyptic number.

It is an amenable number.

49878854329 is a deficient number, since it is larger than the sum of its proper divisors (71314511).

49878854329 is an equidigital number, since it uses as much as digits as its factorization.

49878854329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16139.

The product of its digits is 139345920, while the sum is 67.

The spelling of 49878854329 in words is "forty-nine billion, eight hundred seventy-eight million, eight hundred fifty-four thousand, three hundred twenty-nine".