79219865064 has 64 divisors (see below), whose sum is σ = 198458058240. Its totient is φ = 26352241920.

The previous prime is 79219865047. The next prime is 79219865083. The reversal of 79219865064 is 46056891297.

It is a super-3 number, since 3×79219865064³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79219864995 and 79219865013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43454857 + ... + 43456679.

It is an arithmetic number, because the mean of its divisors is an integer number (3100907160).

Almost surely, 2^79219865064 is an apocalyptic number.

It is an amenable number.

79219865064 is an abundant number, since it is smaller than the sum of its proper divisors (119238193176).

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

79219865064 is a wasteful number, since it uses less digits than its factorization.

79219865064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4570 (or 4566 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 79219865064 in words is "seventy-nine billion, two hundred nineteen million, eight hundred sixty-five thousand, sixty-four".