108186478672 has 20 divisors (see below), whose sum is σ = 210088790560. Its totient is φ = 53970016608.

The previous prime is 108186478657. The next prime is 108186478681. The reversal of 108186478672 is 276874681801.

It is a super-2 number, since 2×108186478672² (a number of 23 digits) contains 22 as substring.

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, 7694178 + ... + 7708225.

It is an arithmetic number, because the mean of its divisors is an integer number (10504439528).

Almost surely, 2^108186478672 is an apocalyptic number.

It is an amenable number.

108186478672 is a deficient number, since it is larger than the sum of its proper divisors (101902311888).

108186478672 is a wasteful number, since it uses less digits than its factorization.

108186478672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15402850 (or 15402844 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 58.

The spelling of 108186478672 in words is "one hundred eight billion, one hundred eighty-six million, four hundred seventy-eight thousand, six hundred seventy-two".