85233909372 has 12 divisors (see below), whose sum is σ = 198879121896. Its totient is φ = 28411303120.

The previous prime is 85233909359. The next prime is 85233909373. The reversal of 85233909372 is 27390933258.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85233909373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3551412879 + ... + 3551412902.

It is an arithmetic number, because the mean of its divisors is an integer number (16573260158).

Almost surely, 2^85233909372 is an apocalyptic number.

It is an amenable number.

85233909372 is an abundant number, since it is smaller than the sum of its proper divisors (113645212524).

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

85233909372 is a wasteful number, since it uses less digits than its factorization.

85233909372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7102825788 (or 7102825786 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 85233909372 in words is "eighty-five billion, two hundred thirty-three million, nine hundred nine thousand, three hundred seventy-two".