18812492974 has 16 divisors (see below), whose sum is σ = 30866623920. Its totient is φ = 8528204160.

The previous prime is 18812492957. The next prime is 18812492981. The reversal of 18812492974 is 47929421881.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1138059 + ... + 1154470.

It is an arithmetic number, because the mean of its divisors is an integer number (1929163995).

Almost surely, 2^18812492974 is an apocalyptic number.

18812492974 is a deficient number, since it is larger than the sum of its proper divisors (12054130946).

18812492974 is a wasteful number, since it uses less digits than its factorization.

18812492974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292915.

The product of its digits is 2322432, while the sum is 55.

The spelling of 18812492974 in words is "eighteen billion, eight hundred twelve million, four hundred ninety-two thousand, nine hundred seventy-four".