18231014344 has 16 divisors (see below), whose sum is σ = 34224800220. Its totient is φ = 9104400960.

The previous prime is 18231014341. The next prime is 18231014363. The reversal of 18231014344 is 44341013281.

It can be written as a sum of positive squares in 2 ways, for example, as 15292290244 + 2938724100 = 123662^2 + 54210^2 .

It is a super-2 number, since 2×18231014344² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18231014341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381299 + ... + 1394434.

Almost surely, 2^18231014344 is an apocalyptic number.

It is an amenable number.

18231014344 is a deficient number, since it is larger than the sum of its proper divisors (15993785876).

18231014344 is a wasteful number, since it uses less digits than its factorization.

18231014344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776560 (or 2776556 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 18231014344 in words is "eighteen billion, two hundred thirty-one million, fourteen thousand, three hundred forty-four".