18628911476 has 24 divisors (see below), whose sum is σ = 37392343296. Its totient is φ = 7954993440.

The previous prime is 18628911439. The next prime is 18628911481. The reversal of 18628911476 is 67411982681.

It is a congruent number.

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, 1193180 + ... + 1208691.

It is an arithmetic number, because the mean of its divisors is an integer number (1558014304).

Almost surely, 2^18628911476 is an apocalyptic number.

It is an amenable number.

18628911476 is an abundant number, since it is smaller than the sum of its proper divisors (18763431820).

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

18628911476 is a wasteful number, since it uses less digits than its factorization.

18628911476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402159 (or 2402157 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 53.

The spelling of 18628911476 in words is "eighteen billion, six hundred twenty-eight million, nine hundred eleven thousand, four hundred seventy-six".