108987220432 has 20 divisors (see below), whose sum is σ = 212256853060. Its totient is φ = 54211258368.

The previous prime is 108987220427. The next prime is 108987220471. The reversal of 108987220432 is 234022789801.

It can be written as a sum of positive squares in 2 ways, for example, as 11708105616 + 97279114816 = 108204^2 + 311896^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17643807 + ... + 17649982.

It is an arithmetic number, because the mean of its divisors is an integer number (10612842653).

Almost surely, 2^108987220432 is an apocalyptic number.

It is an amenable number.

108987220432 is a deficient number, since it is larger than the sum of its proper divisors (103269632628).

108987220432 is a wasteful number, since it uses less digits than its factorization.

108987220432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35293990 (or 35293984 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 108987220432 in words is "one hundred eight billion, nine hundred eighty-seven million, two hundred twenty thousand, four hundred thirty-two".