32609890872 has 256 divisors, whose sum is σ = 100653840000. Its totient is φ = 9718272000.

The previous prime is 32609890861. The next prime is 32609890897. The reversal of 32609890872 is 27809890623.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17153122 + ... + 17155022.

Almost surely, 2^32609890872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32609890872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50326920000).

32609890872 is an abundant number, since it is smaller than the sum of its proper divisors (68043949128).

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

32609890872 is a wasteful number, since it uses less digits than its factorization.

32609890872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119 (or 2109 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 32609890872 in words is "thirty-two billion, six hundred nine million, eight hundred ninety thousand, eight hundred seventy-two".