18953172674 has 16 divisors (see below), whose sum is σ = 29177547840. Its totient is φ = 9230539920.

The previous prime is 18953172659. The next prime is 18953172697. The reversal of 18953172674 is 47627135981.

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, 792269 + ... + 815840.

It is an arithmetic number, because the mean of its divisors is an integer number (1823596740).

Almost surely, 2^18953172674 is an apocalyptic number.

18953172674 is a deficient number, since it is larger than the sum of its proper divisors (10224375166).

18953172674 is a wasteful number, since it uses less digits than its factorization.

18953172674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608265.

The product of its digits is 2540160, while the sum is 53.

The spelling of 18953172674 in words is "eighteen billion, nine hundred fifty-three million, one hundred seventy-two thousand, six hundred seventy-four".