389040561525 has 96 divisors (see below), whose sum is σ = 802638056448. Its totient is φ = 161536204800.

The previous prime is 389040561491. The next prime is 389040561563. The reversal of 389040561525 is 525165040983.

It is not a de Polignac number, because 389040561525 - 2¹² = 389040557429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6629362 + ... + 6687788.

It is an arithmetic number, because the mean of its divisors is an integer number (8360813088).

Almost surely, 2^389040561525 is an apocalyptic number.

389040561525 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

389040561525 is an abundant number, since it is smaller than the sum of its proper divisors (413597494923).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389040561525 is a wasteful number, since it uses less digits than its factorization.

389040561525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59611 (or 59606 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 389040561525 in words is "three hundred eighty-nine billion, forty million, five hundred sixty-one thousand, five hundred twenty-five".