18749525880 has 64 divisors (see below), whose sum is σ = 56341463040. Its totient is φ = 4991617152.

The previous prime is 18749525849. The next prime is 18749525903. The reversal of 18749525880 is 8852594781.

It is a self number, because there is not a number n which added to its sum of digits gives 18749525880.

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 15 ways as a sum of consecutive naturals, for example, 55864 + ... + 201543.

It is an arithmetic number, because the mean of its divisors is an integer number (880335360).

Almost surely, 2^18749525880 is an apocalyptic number.

18749525880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18749525880 is an abundant number, since it is smaller than the sum of its proper divisors (37591937160).

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

18749525880 is a wasteful number, since it uses less digits than its factorization.

18749525880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258028 (or 258024 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 57.

The spelling of 18749525880 in words is "eighteen billion, seven hundred forty-nine million, five hundred twenty-five thousand, eight hundred eighty".