385815992612 has 12 divisors (see below), whose sum is σ = 675793471500. Its totient is φ = 192732143616.

The previous prime is 385815992603. The next prime is 385815992651. The reversal of 385815992612 is 216299518583.

It can be written as a sum of positive squares in 2 ways, for example, as 92857935076 + 292958057536 = 304726^2 + 541256^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43958237 + ... + 43967012.

It is an arithmetic number, because the mean of its divisors is an integer number (56316122625).

Almost surely, 2^385815992612 is an apocalyptic number.

It is an amenable number.

385815992612 is a deficient number, since it is larger than the sum of its proper divisors (289977478888).

385815992612 is a wasteful number, since it uses less digits than its factorization.

385815992612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87926350 (or 87926348 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 59.

The spelling of 385815992612 in words is "three hundred eighty-five billion, eight hundred fifteen million, nine hundred ninety-two thousand, six hundred twelve".