18471958673 has 16 divisors (see below), whose sum is σ = 21262598400. Its totient is φ = 15719368896.

The previous prime is 18471958667. The next prime is 18471958679. The reversal of 18471958673 is 37685917481.

It is an interprime number because it is at equal distance from previous prime (18471958667) and next prime (18471958679).

It is not a de Polignac number, because 18471958673 - 2³⁴ = 1292089489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18471958679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4266836 + ... + 4271162.

It is an arithmetic number, because the mean of its divisors is an integer number (1328912400).

Almost surely, 2^18471958673 is an apocalyptic number.

It is an amenable number.

18471958673 is a deficient number, since it is larger than the sum of its proper divisors (2790639727).

18471958673 is a wasteful number, since it uses less digits than its factorization.

18471958673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8576.

The product of its digits is 10160640, while the sum is 59.

The spelling of 18471958673 in words is "eighteen billion, four hundred seventy-one million, nine hundred fifty-eight thousand, six hundred seventy-three".