18922362674 has 4 divisors (see below), whose sum is σ = 28383544014. Its totient is φ = 9461181336.

The previous prime is 18922362673. The next prime is 18922362749. The reversal of 18922362674 is 47626322981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47626322981 = 32831 ⋅1450651.

It can be written as a sum of positive squares in only one way, i.e., 18592686025 + 329676649 = 136355^2 + 18157^2 .

It is not an unprimeable number, because it can be changed into a prime (18922362673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4730590667 + ... + 4730590670.

Almost surely, 2^18922362674 is an apocalyptic number.

18922362674 is a deficient number, since it is larger than the sum of its proper divisors (9461181340).

18922362674 is an equidigital number, since it uses as much as digits as its factorization.

18922362674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9461181339.

The product of its digits is 1741824, while the sum is 50.

The spelling of 18922362674 in words is "eighteen billion, nine hundred twenty-two million, three hundred sixty-two thousand, six hundred seventy-four".