18074507524 has 12 divisors (see below), whose sum is σ = 31654935900. Its totient is φ = 9030240128.

The previous prime is 18074507501. The next prime is 18074507537. The reversal of 18074507524 is 42570547081.

It can be written as a sum of positive squares in 2 ways, for example, as 15685057600 + 2389449924 = 125240^2 + 48882^2 .

It is a super-2 number, since 2×18074507524² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1747609 + ... + 1757920.

It is an arithmetic number, because the mean of its divisors is an integer number (2637911325).

Almost surely, 2^18074507524 is an apocalyptic number.

It is an amenable number.

18074507524 is a deficient number, since it is larger than the sum of its proper divisors (13580428376).

18074507524 is a wasteful number, since it uses less digits than its factorization.

18074507524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506822 (or 3506820 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 43.

The spelling of 18074507524 in words is "eighteen billion, seventy-four million, five hundred seven thousand, five hundred twenty-four".