79855331974 has 8 divisors (see below), whose sum is σ = 130672361448. Its totient is φ = 36297878160.

The previous prime is 79855331923. The next prime is 79855331989. The reversal of 79855331974 is 47913355897.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814893887 + ... + 1814893930.

It is an arithmetic number, because the mean of its divisors is an integer number (16334045181).

Almost surely, 2^79855331974 is an apocalyptic number.

79855331974 is a deficient number, since it is larger than the sum of its proper divisors (50817029474).

79855331974 is a wasteful number, since it uses less digits than its factorization.

79855331974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629787830.

The product of its digits is 28576800, while the sum is 61.

The spelling of 79855331974 in words is "seventy-nine billion, eight hundred fifty-five million, three hundred thirty-one thousand, nine hundred seventy-four".