18209962492 has 12 divisors (see below), whose sum is σ = 31875655840. Its totient is φ = 9102632256.

The previous prime is 18209962411. The next prime is 18209962499. The reversal of 18209962492 is 29426990281.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18209962499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569748 + ... + 600859.

Almost surely, 2^18209962492 is an apocalyptic number.

It is an amenable number.

18209962492 is a deficient number, since it is larger than the sum of its proper divisors (13665693348).

18209962492 is a wasteful number, since it uses less digits than its factorization.

18209962492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174500 (or 1174498 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 18209962492 in words is "eighteen billion, two hundred nine million, nine hundred sixty-two thousand, four hundred ninety-two".