389388652895 has 32 divisors (see below), whose sum is σ = 523452948480. Its totient is φ = 275660461440.

The previous prime is 389388652859. The next prime is 389388652907. The reversal of 389388652895 is 598256883983.

It is not a de Polignac number, because 389388652895 - 2¹⁰ = 389388651871 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 155705 + ... + 896114.

It is an arithmetic number, because the mean of its divisors is an integer number (16357904640).

Almost surely, 2^389388652895 is an apocalyptic number.

389388652895 is a deficient number, since it is larger than the sum of its proper divisors (134064295585).

389388652895 is a wasteful number, since it uses less digits than its factorization.

389388652895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052015.

The product of its digits is 895795200, while the sum is 74.

The spelling of 389388652895 in words is "three hundred eighty-nine billion, three hundred eighty-eight million, six hundred fifty-two thousand, eight hundred ninety-five".