18630572426 has 16 divisors (see below), whose sum is σ = 29024196480. Its totient is φ = 8962559040.

The previous prime is 18630572419. The next prime is 18630572431. The reversal of 18630572426 is 62427503681.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1674095 + ... + 1685186.

It is an arithmetic number, because the mean of its divisors is an integer number (1814012280).

Almost surely, 2^18630572426 is an apocalyptic number.

18630572426 is a deficient number, since it is larger than the sum of its proper divisors (10393624054).

18630572426 is a wasteful number, since it uses less digits than its factorization.

18630572426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3359389.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 18630572426 in words is "eighteen billion, six hundred thirty million, five hundred seventy-two thousand, four hundred twenty-six".