385864755517 has 8 divisors (see below), whose sum is σ = 406211484960. Its totient is φ = 365521831920.

The previous prime is 385864755503. The next prime is 385864755547. The reversal of 385864755517 is 715557468583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385864755517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385864755547) by changing a digit.

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, 742159 + ... + 1150012.

It is an arithmetic number, because the mean of its divisors is an integer number (50776435620).

Almost surely, 2^385864755517 is an apocalyptic number.

It is an amenable number.

385864755517 is a deficient number, since it is larger than the sum of its proper divisors (20346729443).

385864755517 is a wasteful number, since it uses less digits than its factorization.

385864755517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902923.

The product of its digits is 141120000, while the sum is 64.

The spelling of 385864755517 in words is "three hundred eighty-five billion, eight hundred sixty-four million, seven hundred fifty-five thousand, five hundred seventeen".