32870515440 has 80 divisors (see below), whose sum is σ = 116455546368. Its totient is φ = 7513260288.

The previous prime is 32870515411. The next prime is 32870515441. The reversal of 32870515440 is 4451507823.

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 (32870515441) 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, 9781212 + ... + 9784571.

Almost surely, 2^32870515440 is an apocalyptic number.

32870515440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32870515440 is an abundant number, since it is smaller than the sum of its proper divisors (83585030928).

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

32870515440 is a wasteful number, since it uses less digits than its factorization.

32870515440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19565806 (or 19565800 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The spelling of 32870515440 in words is "thirty-two billion, eight hundred seventy million, five hundred fifteen thousand, four hundred forty".