79808734190 has 16 divisors (see below), whose sum is σ = 146090565360. Its totient is φ = 31382417280.

The previous prime is 79808734189. The next prime is 79808734211. The reversal of 79808734190 is 9143780897.

It is a super-2 number, since 2×79808734190² (a number of 23 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, 67633931 + ... + 67635110.

It is an arithmetic number, because the mean of its divisors is an integer number (9130660335).

Almost surely, 2^79808734190 is an apocalyptic number.

79808734190 is a deficient number, since it is larger than the sum of its proper divisors (66281831170).

79808734190 is a wasteful number, since it uses less digits than its factorization.

79808734190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135269107.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The spelling of 79808734190 in words is "seventy-nine billion, eight hundred eight million, seven hundred thirty-four thousand, one hundred ninety".