18745499337507 has 20 divisors (see below), whose sum is σ = 28002803814216. Its totient is φ = 12496880059200.

The previous prime is 18745499337457. The next prime is 18745499337553. The reversal of 18745499337507 is 70573399454781.

18745499337507 is a `hidden beast` number, since 1 + 8 + 7 + 4 + 549 + 9 + 3 + 3 + 75 + 0 + 7 = 666.

It is not a de Polignac number, because 18745499337507 - 2¹⁵ = 18745499304739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18745499337007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7862683 + ... + 9965579.

Almost surely, 2^{18745499337507} is an apocalyptic number.

18745499337507 is a deficient number, since it is larger than the sum of its proper divisors (9257304476709).

18745499337507 is a wasteful number, since it uses less digits than its factorization.

18745499337507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212960 (or 2212951 counting only the distinct ones).

The product of its (nonzero) digits is 800150400, while the sum is 72.

The spelling of 18745499337507 in words is "eighteen trillion, seven hundred forty-five billion, four hundred ninety-nine million, three hundred thirty-seven thousand, five hundred seven".