85232438520 has 32 divisors (see below), whose sum is σ = 255697315920. Its totient is φ = 22728650240.

The previous prime is 85232438513. The next prime is 85232438521. The reversal of 85232438520 is 2583423258.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85232438521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355135041 + ... + 355135280.

Almost surely, 2^85232438520 is an apocalyptic number.

It is an amenable number.

85232438520 is an abundant number, since it is smaller than the sum of its proper divisors (170464877400).

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

85232438520 is a wasteful number, since it uses less digits than its factorization.

85232438520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710270335 (or 710270331 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 85232438520 in words is "eighty-five billion, two hundred thirty-two million, four hundred thirty-eight thousand, five hundred twenty".