18573746372 has 48 divisors (see below), whose sum is σ = 34620974640. Its totient is φ = 8688709632.

The previous prime is 18573746353. The next prime is 18573746383. The reversal of 18573746372 is 27364737581.

It can be written as a sum of positive squares in 8 ways, for example, as 1071514756 + 17502231616 = 32734^2 + 132296^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10716818 + ... + 10718550.

It is an arithmetic number, because the mean of its divisors is an integer number (721270305).

Almost surely, 2^18573746372 is an apocalyptic number.

It is an amenable number.

18573746372 is a deficient number, since it is larger than the sum of its proper divisors (16047228268).

18573746372 is a wasteful number, since it uses less digits than its factorization.

18573746372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600 (or 2598 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 53.

The spelling of 18573746372 in words is "eighteen billion, five hundred seventy-three million, seven hundred forty-six thousand, three hundred seventy-two".