7490779872420 has 96 divisors (see below), whose sum is σ = 22625292614400. Its totient is φ = 1840805890560.

The previous prime is 7490779872383. The next prime is 7490779872439. The reversal of 7490779872420 is 242789770947.

It is a super-2 number, since 2×7490779872420² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7549111 + ... + 8483550.

It is an arithmetic number, because the mean of its divisors is an integer number (235680131400).

Almost surely, 2^{7490779872420} is an apocalyptic number.

It is an amenable number.

7490779872420 is an abundant number, since it is smaller than the sum of its proper divisors (15134512741980).

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

7490779872420 is a wasteful number, since it uses less digits than its factorization.

7490779872420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16033285 (or 16033283 counting only the distinct ones).

The product of its (nonzero) digits is 99574272, while the sum is 66.

The spelling of 7490779872420 in words is "seven trillion, four hundred ninety billion, seven hundred seventy-nine million, eight hundred seventy-two thousand, four hundred twenty".