108431778480 has 40 divisors (see below), whose sum is σ = 336138514032. Its totient is φ = 28915140864.

The previous prime is 108431778407. The next prime is 108431778503. The reversal of 108431778480 is 84877134801.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×108431778480² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225899299 + ... + 225899778.

Almost surely, 2^108431778480 is an apocalyptic number.

108431778480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108431778480 is an abundant number, since it is smaller than the sum of its proper divisors (227706735552).

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

108431778480 is a wasteful number, since it uses less digits than its factorization.

108431778480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451799093 (or 451799087 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 51.

The spelling of 108431778480 in words is "one hundred eight billion, four hundred thirty-one million, seven hundred seventy-eight thousand, four hundred eighty".