18492347465 has 32 divisors (see below), whose sum is σ = 24340085280. Its totient is φ = 13431193600.

The previous prime is 18492347399. The next prime is 18492347479. The reversal of 18492347465 is 56474329481.

It can be written as a sum of positive squares in 16 ways, for example, as 5509795984 + 12982551481 = 74228^2 + 113941^2 .

It is not a de Polignac number, because 18492347465 - 2¹⁸ = 18492085321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280355 + ... + 339975.

It is an arithmetic number, because the mean of its divisors is an integer number (760627665).

Almost surely, 2^18492347465 is an apocalyptic number.

It is an amenable number.

18492347465 is a deficient number, since it is larger than the sum of its proper divisors (5847737815).

18492347465 is a wasteful number, since it uses less digits than its factorization.

18492347465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59773.

The product of its digits is 5806080, while the sum is 53.

The spelling of 18492347465 in words is "eighteen billion, four hundred ninety-two million, three hundred forty-seven thousand, four hundred sixty-five".