108641998772 has 24 divisors (see below), whose sum is σ = 198680319936. Its totient is φ = 51883111808.

The previous prime is 108641998747. The next prime is 108641998793. The reversal of 108641998772 is 277899146801.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801653 + ... + 927324.

It is an arithmetic number, because the mean of its divisors is an integer number (8278346664).

Almost surely, 2^108641998772 is an apocalyptic number.

It is an amenable number.

108641998772 is a deficient number, since it is larger than the sum of its proper divisors (90038321164).

108641998772 is a wasteful number, since it uses less digits than its factorization.

108641998772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729687 (or 1729685 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 62.

The spelling of 108641998772 in words is "one hundred eight billion, six hundred forty-one million, nine hundred ninety-eight thousand, seven hundred seventy-two".