18996336850 has 48 divisors (see below), whose sum is σ = 36048317760. Its totient is φ = 7445131200.

The previous prime is 18996336803. The next prime is 18996336881. The reversal of 18996336850 is 5863369981.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2144731 + ... + 2153569.

It is an arithmetic number, because the mean of its divisors is an integer number (751006620).

Almost surely, 2^18996336850 is an apocalyptic number.

18996336850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18996336850 is a deficient number, since it is larger than the sum of its proper divisors (17051980910).

18996336850 is a wasteful number, since it uses less digits than its factorization.

18996336850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9715 (or 9710 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 58.

The spelling of 18996336850 in words is "eighteen billion, nine hundred ninety-six million, three hundred thirty-six thousand, eight hundred fifty".