32971315920 has 80 divisors (see below), whose sum is σ = 104385818880. Its totient is φ = 8605276672.

The previous prime is 32971315913. The next prime is 32971315921. The reversal of 32971315920 is 2951317923.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32971315921) 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, 1450215 + ... + 1472774.

It is an arithmetic number, because the mean of its divisors is an integer number (1304822736).

Almost surely, 2^32971315920 is an apocalyptic number.

32971315920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32971315920 is an abundant number, since it is smaller than the sum of its proper divisors (71414502960).

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

32971315920 is a wasteful number, since it uses less digits than its factorization.

32971315920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923052 (or 2923046 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 42.

The spelling of 32971315920 in words is "thirty-two billion, nine hundred seventy-one million, three hundred fifteen thousand, nine hundred twenty".