18790000381572 has 24 divisors (see below), whose sum is σ = 50106667684416. Its totient is φ = 5368571537568.

The previous prime is 18790000381549. The next prime is 18790000381583. The reversal of 18790000381572 is 27518300009781.

It is a super-2 number, since 2×18790000381572² (a number of 27 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 111845240283 + ... + 111845240450.

It is an arithmetic number, because the mean of its divisors is an integer number (2087777820184).

Almost surely, 2^{18790000381572} is an apocalyptic number.

18790000381572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18790000381572 is an abundant number, since it is smaller than the sum of its proper divisors (31316667302844).

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

18790000381572 is a wasteful number, since it uses less digits than its factorization.

18790000381572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223690480747 (or 223690480745 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 51.

The spelling of 18790000381572 in words is "eighteen trillion, seven hundred ninety billion, three hundred eighty-one thousand, five hundred seventy-two".