18880394600 has 48 divisors (see below), whose sum is σ = 44331587820. Its totient is φ = 7477376000.

The previous prime is 18880394567. The next prime is 18880394641. The reversal of 18880394600 is 649308881.

It can be written as a sum of positive squares in 6 ways, for example, as 14370734884 + 4509659716 = 119878^2 + 67154^2 .

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 11 ways as a sum of consecutive naturals, for example, 447137 + ... + 487536.

Almost surely, 2^18880394600 is an apocalyptic number.

18880394600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18880394600 is an abundant number, since it is smaller than the sum of its proper divisors (25451193220).

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

18880394600 is a wasteful number, since it uses less digits than its factorization.

18880394600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934790 (or 934781 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 18880394600 in words is "eighteen billion, eight hundred eighty million, three hundred ninety-four thousand, six hundred".