18425916694 has 8 divisors (see below), whose sum is σ = 28051395768. Its totient is φ = 9075451440.

The previous prime is 18425916689. The next prime is 18425916709. The reversal of 18425916694 is 49661952481.

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, 68753287 + ... + 68753554.

It is an arithmetic number, because the mean of its divisors is an integer number (3506424471).

Almost surely, 2^18425916694 is an apocalyptic number.

18425916694 is a deficient number, since it is larger than the sum of its proper divisors (9625479074).

18425916694 is a wasteful number, since it uses less digits than its factorization.

18425916694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137506910.

The product of its digits is 3732480, while the sum is 55.

The spelling of 18425916694 in words is "eighteen billion, four hundred twenty-five million, nine hundred sixteen thousand, six hundred ninety-four".