18290012499 has 12 divisors (see below), whose sum is σ = 28820625912. Its totient is φ = 11084856000.

The previous prime is 18290012471. The next prime is 18290012537. The reversal of 18290012499 is 99421009281.

It is not a de Polignac number, because 18290012499 - 2¹⁵ = 18289979731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18290012399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92373702 + ... + 92373899.

It is an arithmetic number, because the mean of its divisors is an integer number (2401718826).

Almost surely, 2^18290012499 is an apocalyptic number.

18290012499 is a deficient number, since it is larger than the sum of its proper divisors (10530613413).

18290012499 is a wasteful number, since it uses less digits than its factorization.

18290012499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184747618 (or 184747615 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 18290012499 in words is "eighteen billion, two hundred ninety million, twelve thousand, four hundred ninety-nine".