18140570465 has 8 divisors (see below), whose sum is σ = 22715149248. Its totient is φ = 13881479920.

The previous prime is 18140570431. The next prime is 18140570471. The reversal of 18140570465 is 56407504181.

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

It is not a de Polignac number, because 18140570465 - 2²² = 18136376161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78871931 + ... + 78872160.

It is an arithmetic number, because the mean of its divisors is an integer number (2839393656).

Almost surely, 2^18140570465 is an apocalyptic number.

It is an amenable number.

18140570465 is a deficient number, since it is larger than the sum of its proper divisors (4574578783).

18140570465 is a wasteful number, since it uses less digits than its factorization.

18140570465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157744119.

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 18140570465 in words is "eighteen billion, one hundred forty million, five hundred seventy thousand, four hundred sixty-five".