18714749725 has 12 divisors (see below), whose sum is σ = 26521474144. Its totient is φ = 12832971120.

The previous prime is 18714749717. The next prime is 18714749731. The reversal of 18714749725 is 52794741781.

It is not a de Polignac number, because 18714749725 - 2³ = 18714749717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53470539 + ... + 53470888.

Almost surely, 2^18714749725 is an apocalyptic number.

It is an amenable number.

18714749725 is a deficient number, since it is larger than the sum of its proper divisors (7806724419).

18714749725 is a wasteful number, since it uses less digits than its factorization.

18714749725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106941444 (or 106941439 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 55.

The spelling of 18714749725 in words is "eighteen billion, seven hundred fourteen million, seven hundred forty-nine thousand, seven hundred twenty-five".