18748621476 has 48 divisors (see below), whose sum is σ = 52346582400. Its totient is φ = 5768806176.

The previous prime is 18748621459. The next prime is 18748621483. The reversal of 18748621476 is 67412684781.

18748621476 is a `hidden beast` number, since 1 + 8 + 7 + 4 + 8 + 621 + 4 + 7 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6675456 + ... + 6678263.

It is an arithmetic number, because the mean of its divisors is an integer number (1090553800).

Almost surely, 2^18748621476 is an apocalyptic number.

It is an amenable number.

18748621476 is an abundant number, since it is smaller than the sum of its proper divisors (33597960924).

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

18748621476 is a wasteful number, since it uses less digits than its factorization.

18748621476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13353745 (or 13353737 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 54.

The spelling of 18748621476 in words is "eighteen billion, seven hundred forty-eight million, six hundred twenty-one thousand, four hundred seventy-six".