85810389432 has 32 divisors (see below), whose sum is σ = 214535018880. Its totient is φ = 28602257120.

The previous prime is 85810389391. The next prime is 85810389433. The reversal of 85810389432 is 23498301858.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85810389433) 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, 646957 + ... + 768227.

It is an arithmetic number, because the mean of its divisors is an integer number (6704219340).

Almost surely, 2^85810389432 is an apocalyptic number.

It is an amenable number.

85810389432 is an abundant number, since it is smaller than the sum of its proper divisors (128724629448).

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

85810389432 is a wasteful number, since it uses less digits than its factorization.

85810389432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150763 (or 150759 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 85810389432 in words is "eighty-five billion, eight hundred ten million, three hundred eighty-nine thousand, four hundred thirty-two".