49181279629 has 2 divisors, whose sum is σ = 49181279630. Its totient is φ = 49181279628.

The previous prime is 49181279593. The next prime is 49181279639. The reversal of 49181279629 is 92697218194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45592071529 + 3589208100 = 213523^2 + 59910^2 .

It is a cyclic number.

It is not a de Polignac number, because 49181279629 - 2²¹ = 49179182477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49181279639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24590639814 + 24590639815.

It is an arithmetic number, because the mean of its divisors is an integer number (24590639815).

Almost surely, 2^49181279629 is an apocalyptic number.

It is an amenable number.

49181279629 is a deficient number, since it is larger than the sum of its proper divisors (1).

49181279629 is an equidigital number, since it uses as much as digits as its factorization.

49181279629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 58.

The spelling of 49181279629 in words is "forty-nine billion, one hundred eighty-one million, two hundred seventy-nine thousand, six hundred twenty-nine".