19868796600 has 48 divisors (see below), whose sum is σ = 61593271320. Its totient is φ = 5298345600.

The previous prime is 19868796599. The next prime is 19868796683. The reversal of 19868796600 is 669786891.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16556731 + ... + 16557930.

Almost surely, 2^19868796600 is an apocalyptic number.

19868796600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19868796600 is an abundant number, since it is smaller than the sum of its proper divisors (41724474720).

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

19868796600 is a wasteful number, since it uses less digits than its factorization.

19868796600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33114680 (or 33114671 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 60.

The spelling of 19868796600 in words is "nineteen billion, eight hundred sixty-eight million, seven hundred ninety-six thousand, six hundred".