79469351631 has 24 divisors (see below), whose sum is σ = 121993251120. Its totient is φ = 49677732096.

The previous prime is 79469351603. The next prime is 79469351641. The reversal of 79469351631 is 13615396497.

79469351631 is a `hidden beast` number, since 7 + 9 + 4 + 6 + 93 + 516 + 31 = 666.

It is not a de Polignac number, because 79469351631 - 2⁹ = 79469351119 is a prime.

It is a super-2 number, since 2×79469351631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79469351641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 924285 + ... + 1006598.

It is an arithmetic number, because the mean of its divisors is an integer number (5083052130).

Almost surely, 2^79469351631 is an apocalyptic number.

79469351631 is a deficient number, since it is larger than the sum of its proper divisors (42523899489).

79469351631 is a wasteful number, since it uses less digits than its factorization.

79469351631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931175 (or 1931172 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The spelling of 79469351631 in words is "seventy-nine billion, four hundred sixty-nine million, three hundred fifty-one thousand, six hundred thirty-one".