57777829212 has 24 divisors (see below), whose sum is σ = 142745225616. Its totient is φ = 18126377728.

The previous prime is 57777829157. The next prime is 57777829237. The reversal of 57777829212 is 21292877775.

It is a happy number.

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, 141612123 + ... + 141612530.

It is an arithmetic number, because the mean of its divisors is an integer number (5947717734).

Almost surely, 2^57777829212 is an apocalyptic number.

It is an amenable number.

57777829212 is an abundant number, since it is smaller than the sum of its proper divisors (84967396404).

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

57777829212 is a wasteful number, since it uses less digits than its factorization.

57777829212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283224677 (or 283224675 counting only the distinct ones).

The product of its digits is 6914880, while the sum is 57.

The spelling of 57777829212 in words is "fifty-seven billion, seven hundred seventy-seven million, eight hundred twenty-nine thousand, two hundred twelve".