389131988757 has 16 divisors (see below), whose sum is σ = 519982095360. Its totient is φ = 258852231792.

The previous prime is 389131988699. The next prime is 389131988761. The reversal of 389131988757 is 757889131983.

It is not a de Polignac number, because 389131988757 - 2¹⁰ = 389131987733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 389131988691 and 389131988700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389131988767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2431044 + ... + 2586162.

It is an arithmetic number, because the mean of its divisors is an integer number (32498880960).

Almost surely, 2^389131988757 is an apocalyptic number.

It is an amenable number.

389131988757 is a deficient number, since it is larger than the sum of its proper divisors (130850106603).

389131988757 is a wasteful number, since it uses less digits than its factorization.

389131988757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156952.

The product of its digits is 91445760, while the sum is 69.

The spelling of 389131988757 in words is "three hundred eighty-nine billion, one hundred thirty-one million, nine hundred eighty-eight thousand, seven hundred fifty-seven".