385121126715 has 64 divisors (see below), whose sum is σ = 702653683200. Its totient is φ = 179618954112.

The previous prime is 385121126711. The next prime is 385121126749. The reversal of 385121126715 is 517621121583.

It is not a de Polignac number, because 385121126715 - 2² = 385121126711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385121126711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 318612 + ... + 933678.

It is an arithmetic number, because the mean of its divisors is an integer number (10978963800).

Almost surely, 2^385121126715 is an apocalyptic number.

385121126715 is a deficient number, since it is larger than the sum of its proper divisors (317532556485).

385121126715 is a wasteful number, since it uses less digits than its factorization.

385121126715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615133 (or 615107 counting only the distinct ones).

The product of its digits is 100800, while the sum is 42.

The spelling of 385121126715 in words is "three hundred eighty-five billion, one hundred twenty-one million, one hundred twenty-six thousand, seven hundred fifteen".