18653396650 has 24 divisors (see below), whose sum is σ = 39651792480. Its totient is φ = 6395450160.

The previous prime is 18653396627. The next prime is 18653396669. The reversal of 18653396650 is 5669335681.

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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26647360 + ... + 26648059.

It is an arithmetic number, because the mean of its divisors is an integer number (1652158020).

Almost surely, 2^18653396650 is an apocalyptic number.

18653396650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18653396650 is an abundant number, since it is smaller than the sum of its proper divisors (20998395830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18653396650 is a wasteful number, since it uses less digits than its factorization.

18653396650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53295438 (or 53295433 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 52.

The spelling of 18653396650 in words is "eighteen billion, six hundred fifty-three million, three hundred ninety-six thousand, six hundred fifty".