79687827642 has 32 divisors (see below), whose sum is σ = 163445515200. Its totient is φ = 25887052800.

The previous prime is 79687827631. The next prime is 79687827679. The reversal of 79687827642 is 24672878697.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 228109 + ... + 459792.

It is an arithmetic number, because the mean of its divisors is an integer number (5107672350).

Almost surely, 2^79687827642 is an apocalyptic number.

79687827642 is an abundant number, since it is smaller than the sum of its proper divisors (83757687558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79687827642 is a wasteful number, since it uses less digits than its factorization.

79687827642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688398.

The product of its digits is 113799168, while the sum is 66.

The spelling of 79687827642 in words is "seventy-nine billion, six hundred eighty-seven million, eight hundred twenty-seven thousand, six hundred forty-two".