18291912974 has 8 divisors (see below), whose sum is σ = 27466845768. Its totient is φ = 9136297720.

The previous prime is 18291912953. The next prime is 18291913001. The reversal of 18291912974 is 47921919281.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4827017 + ... + 4830804.

It is an arithmetic number, because the mean of its divisors is an integer number (3433355721).

Almost surely, 2^18291912974 is an apocalyptic number.

18291912974 is a deficient number, since it is larger than the sum of its proper divisors (9174932794).

18291912974 is an equidigital number, since it uses as much as digits as its factorization.

18291912974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9658770.

The product of its digits is 653184, while the sum is 53.

The spelling of 18291912974 in words is "eighteen billion, two hundred ninety-one million, nine hundred twelve thousand, nine hundred seventy-four".