4777777777620 has 24 divisors (see below), whose sum is σ = 13377777777504. Its totient is φ = 1274074074016.

The previous prime is 4777777777579. The next prime is 4777777777631. The reversal of 4777777777620 is 267777777774.

It is a hoax number, since the sum of its digits (75) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39814814754 + ... + 39814814873.

It is an arithmetic number, because the mean of its divisors is an integer number (557407407396).

Almost surely, 2^{4777777777620} is an apocalyptic number.

It is an amenable number.

4777777777620 is an abundant number, since it is smaller than the sum of its proper divisors (8599999999884).

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

4777777777620 is a wasteful number, since it uses less digits than its factorization.

4777777777620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79629629639 (or 79629629637 counting only the distinct ones).

The product of its (nonzero) digits is 1936973136, while the sum is 75.

The spelling of 4777777777620 in words is "four trillion, seven hundred seventy-seven billion, seven hundred seventy-seven million, seven hundred seventy-seven thousand, six hundred twenty".