108208728421680 has 160 divisors (see below), whose sum is σ = 353106751507200. Its totient is φ = 27336586945536.

The previous prime is 108208728421649. The next prime is 108208728421741. The reversal of 108208728421680 is 86124827802801.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 108208728421680.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 690437887 + ... + 690594593.

It is an arithmetic number, because the mean of its divisors is an integer number (2206917196920).

Almost surely, 2^{108208728421680} is an apocalyptic number.

108208728421680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108208728421680 is an abundant number, since it is smaller than the sum of its proper divisors (244898023085520).

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

108208728421680 is a wasteful number, since it uses less digits than its factorization.

108208728421680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308171 (or 308165 counting only the distinct ones).

The product of its (nonzero) digits is 5505024, while the sum is 57.

The spelling of 108208728421680 in words is "one hundred eight trillion, two hundred eight billion, seven hundred twenty-eight million, four hundred twenty-one thousand, six hundred eighty".