79271263816 has 16 divisors (see below), whose sum is σ = 148671336240. Its totient is φ = 39625574160.

The previous prime is 79271263811. The next prime is 79271263829. The reversal of 79271263816 is 61836217297.

It is not an unprimeable number, because it can be changed into a prime (79271263811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1223670 + ... + 1286821.

It is an arithmetic number, because the mean of its divisors is an integer number (9291958515).

Almost surely, 2^79271263816 is an apocalyptic number.

It is an amenable number.

79271263816 is a deficient number, since it is larger than the sum of its proper divisors (69400072424).

79271263816 is a wasteful number, since it uses less digits than its factorization.

79271263816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514444 (or 2514440 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 52.

The spelling of 79271263816 in words is "seventy-nine billion, two hundred seventy-one million, two hundred sixty-three thousand, eight hundred sixteen".