18791056325 has 12 divisors (see below), whose sum is σ = 23303011488. Its totient is φ = 15031489200.

The previous prime is 18791056313. The next prime is 18791056337. The reversal of 18791056325 is 52365019781.

It is an interprime number because it is at equal distance from previous prime (18791056313) and next prime (18791056337).

It is not a de Polignac number, because 18791056325 - 2²⁰ = 18790007749 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18791056325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322160 + ... + 375990.

It is an arithmetic number, because the mean of its divisors is an integer number (1941917624).

Almost surely, 2^18791056325 is an apocalyptic number.

It is an amenable number.

18791056325 is a deficient number, since it is larger than the sum of its proper divisors (4511955163).

18791056325 is a wasteful number, since it uses less digits than its factorization.

18791056325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67804 (or 67799 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 18791056325 in words is "eighteen billion, seven hundred ninety-one million, fifty-six thousand, three hundred twenty-five".