19715804680 has 64 divisors (see below), whose sum is σ = 52115918400. Its totient is φ = 6617890560.

The previous prime is 19715804663. The next prime is 19715804683. The reversal of 19715804680 is 8640851791.

It is not an unprimeable number, because it can be changed into a prime (19715804683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1717690 + ... + 1729129.

It is an arithmetic number, because the mean of its divisors is an integer number (814311225).

Almost surely, 2^19715804680 is an apocalyptic number.

19715804680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19715804680 is an abundant number, since it is smaller than the sum of its proper divisors (32400113720).

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

19715804680 is a wasteful number, since it uses less digits than its factorization.

19715804680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446854 (or 3446850 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 19715804680 in words is "nineteen billion, seven hundred fifteen million, eight hundred four thousand, six hundred eighty".