679813111902 has 16 divisors (see below), whose sum is σ = 1378775889792. Its totient is φ = 223412759640.

The previous prime is 679813111889. The next prime is 679813111951. The reversal of 679813111902 is 209111318976.

It is a super-2 number, since 2×679813111902² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797902288 + ... + 797903139.

It is an arithmetic number, because the mean of its divisors is an integer number (86173493112).

Almost surely, 2^679813111902 is an apocalyptic number.

679813111902 is an abundant number, since it is smaller than the sum of its proper divisors (698962777890).

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

679813111902 is a wasteful number, since it uses less digits than its factorization.

679813111902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595805503.

The product of its (nonzero) digits is 163296, while the sum is 48.

The spelling of 679813111902 in words is "six hundred seventy-nine billion, eight hundred thirteen million, one hundred eleven thousand, nine hundred two".