79790020022 has 32 divisors (see below), whose sum is σ = 127617638400. Its totient is φ = 37307305728.

The previous prime is 79790019997. The next prime is 79790020027. The reversal of 79790020022 is 22002009797.

It is a super-2 number, since 2×79790020022² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79790020027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1383479 + ... + 1439997.

It is an arithmetic number, because the mean of its divisors is an integer number (3988051200).

Almost surely, 2^79790020022 is an apocalyptic number.

79790020022 is a deficient number, since it is larger than the sum of its proper divisors (47827618378).

79790020022 is a wasteful number, since it uses less digits than its factorization.

79790020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57020.

The product of its (nonzero) digits is 31752, while the sum is 38.

The spelling of 79790020022 in words is "seventy-nine billion, seven hundred ninety million, twenty thousand, twenty-two".