79669263928 has 16 divisors (see below), whose sum is σ = 149386655880. Its totient is φ = 39832822368.

The previous prime is 79669263923. The next prime is 79669263929. The reversal of 79669263928 is 82936296697.

It is a super-2 number, since 2×79669263928² (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 (79669263923) 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 3 ways as a sum of consecutive naturals, for example, 28975 + ... + 400222.

Almost surely, 2^79669263928 is an apocalyptic number.

It is an amenable number.

79669263928 is a deficient number, since it is larger than the sum of its proper divisors (69717391952).

79669263928 is a wasteful number, since it uses less digits than its factorization.

79669263928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452406 (or 452402 counting only the distinct ones).

The product of its digits is 105815808, while the sum is 67.

The spelling of 79669263928 in words is "seventy-nine billion, six hundred sixty-nine million, two hundred sixty-three thousand, nine hundred twenty-eight".