18957460475 has 6 divisors (see below), whose sum is σ = 23507251020. Its totient is φ = 15165968360.

The previous prime is 18957460471. The next prime is 18957460477. The reversal of 18957460475 is 57406475981.

It is a happy number.

It is not a de Polignac number, because 18957460475 - 2² = 18957460471 is a prime.

It is a super-2 number, since 2×18957460475² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18957460475.

It is not an unprimeable number, because it can be changed into a prime (18957460471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 379149185 + ... + 379149234.

It is an arithmetic number, because the mean of its divisors is an integer number (3917875170).

Almost surely, 2^18957460475 is an apocalyptic number.

18957460475 is a deficient number, since it is larger than the sum of its proper divisors (4549790545).

18957460475 is an equidigital number, since it uses as much as digits as its factorization.

18957460475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758298429 (or 758298424 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 56.

The spelling of 18957460475 in words is "eighteen billion, nine hundred fifty-seven million, four hundred sixty thousand, four hundred seventy-five".