79887815626 has 8 divisors (see below), whose sum is σ = 122381334720. Its totient is φ = 39094037388.

The previous prime is 79887815621. The next prime is 79887815629. The reversal of 79887815626 is 62651878897.

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

It is not an unprimeable number, because it can be changed into a prime (79887815621) 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, 424935096 + ... + 424935283.

It is an arithmetic number, because the mean of its divisors is an integer number (15297666840).

Almost surely, 2^79887815626 is an apocalyptic number.

79887815626 is a deficient number, since it is larger than the sum of its proper divisors (42493519094).

79887815626 is a wasteful number, since it uses less digits than its factorization.

79887815626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849870428.

The product of its digits is 81285120, while the sum is 67.

The spelling of 79887815626 in words is "seventy-nine billion, eight hundred eighty-seven million, eight hundred fifteen thousand, six hundred twenty-six".