19804574680 has 32 divisors (see below), whose sum is σ = 48611229840. Its totient is φ = 7201663360.

The previous prime is 19804574659. The next prime is 19804574693. The reversal of 19804574680 is 8647540891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22504759 + ... + 22505638.

Almost surely, 2^19804574680 is an apocalyptic number.

19804574680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19804574680 is an abundant number, since it is smaller than the sum of its proper divisors (28806655160).

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

19804574680 is a wasteful number, since it uses less digits than its factorization.

19804574680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45010419 (or 45010415 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 19804574680 in words is "nineteen billion, eight hundred four million, five hundred seventy-four thousand, six hundred eighty".