57820312386 has 24 divisors (see below), whose sum is σ = 125340724080. Its totient is φ = 19263686616.

The previous prime is 57820312369. The next prime is 57820312427. The reversal of 57820312386 is 68321302875.

57820312386 is a `hidden beast` number, since 57 + 8 + 203 + 12 + 386 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 775960 + ... + 847203.

It is an arithmetic number, because the mean of its divisors is an integer number (5222530170).

Almost surely, 2^57820312386 is an apocalyptic number.

57820312386 is an abundant number, since it is smaller than the sum of its proper divisors (67520411694).

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

57820312386 is a wasteful number, since it uses less digits than its factorization.

57820312386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625150 (or 1625147 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 57820312386 in words is "fifty-seven billion, eight hundred twenty million, three hundred twelve thousand, three hundred eighty-six".