18502262668 has 12 divisors (see below), whose sum is σ = 32380320280. Its totient is φ = 9250742592.

The previous prime is 18502262663. The next prime is 18502262683. The reversal of 18502262668 is 86626220581.

It is not an unprimeable number, because it can be changed into a prime (18502262663) 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 3 ways as a sum of consecutive naturals, for example, 27748 + ... + 194356.

Almost surely, 2^18502262668 is an apocalyptic number.

It is an amenable number.

18502262668 is a deficient number, since it is larger than the sum of its proper divisors (13878057612).

18502262668 is a wasteful number, since it uses less digits than its factorization.

18502262668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194376 (or 194374 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 18502262668 in words is "eighteen billion, five hundred two million, two hundred sixty-two thousand, six hundred sixty-eight".