18362136544 has 24 divisors (see below), whose sum is σ = 36273855240. Its totient is φ = 9149728896.

The previous prime is 18362136521. The next prime is 18362136553. The reversal of 18362136544 is 44563126381.

It is a self number, because there is not a number n which added to its sum of digits gives 18362136544.

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, 969834 + ... + 988585.

It is an arithmetic number, because the mean of its divisors is an integer number (1511410635).

Almost surely, 2^18362136544 is an apocalyptic number.

It is an amenable number.

18362136544 is a deficient number, since it is larger than the sum of its proper divisors (17911718696).

18362136544 is a wasteful number, since it uses less digits than its factorization.

18362136544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958722 (or 1958714 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The spelling of 18362136544 in words is "eighteen billion, three hundred sixty-two million, one hundred thirty-six thousand, five hundred forty-four".