79755884420 has 12 divisors (see below), whose sum is σ = 167487357324. Its totient is φ = 31902353760.

The previous prime is 79755884347. The next prime is 79755884423. The reversal of 79755884420 is 2448855797.

It can be written as a sum of positive squares in 2 ways, for example, as 58115709184 + 21640175236 = 241072^2 + 147106^2 .

It is a super-2 number, since 2×79755884420² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 79755884420.

It is not an unprimeable number, because it can be changed into a prime (79755884423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1993897091 + ... + 1993897130.

It is an arithmetic number, because the mean of its divisors is an integer number (13957279777).

Almost surely, 2^79755884420 is an apocalyptic number.

It is an amenable number.

79755884420 is an abundant number, since it is smaller than the sum of its proper divisors (87731472904).

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

79755884420 is a wasteful number, since it uses less digits than its factorization.

79755884420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987794230 (or 3987794228 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 59.

The spelling of 79755884420 in words is "seventy-nine billion, seven hundred fifty-five million, eight hundred eighty-four thousand, four hundred twenty".