79434216880 has 40 divisors (see below), whose sum is σ = 184710726864. Its totient is φ = 31769184000.

The previous prime is 79434216859. The next prime is 79434216889. The reversal of 79434216880 is 8861243497.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×79434216880² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79434216889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529450 + ... + 662710.

Almost surely, 2^79434216880 is an apocalyptic number.

It is an amenable number.

79434216880 is an abundant number, since it is smaller than the sum of its proper divisors (105276509984).

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

79434216880 is a wasteful number, since it uses less digits than its factorization.

79434216880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140725 (or 140719 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 79434216880 in words is "seventy-nine billion, four hundred thirty-four million, two hundred sixteen thousand, eight hundred eighty".