18482157544 has 32 divisors (see below), whose sum is σ = 34744553640. Its totient is φ = 9216979200.

The previous prime is 18482157539. The next prime is 18482157553. The reversal of 18482157544 is 44575128481.

It can be written as a sum of positive squares in 4 ways, for example, as 18431320644 + 50836900 = 135762^2 + 7130^2 .

It is a super-2 number, since 2×18482157544² (a number of 21 digits) contains 22 as substring.

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, 7893814 + ... + 7896154.

Almost surely, 2^18482157544 is an apocalyptic number.

It is an amenable number.

18482157544 is a deficient number, since it is larger than the sum of its proper divisors (16262396096).

18482157544 is a wasteful number, since it uses less digits than its factorization.

18482157544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501 (or 4497 counting only the distinct ones).

The product of its digits is 1433600, while the sum is 49.

The spelling of 18482157544 in words is "eighteen billion, four hundred eighty-two million, one hundred fifty-seven thousand, five hundred forty-four".