19679685860 has 48 divisors (see below), whose sum is σ = 46061447040. Its totient is φ = 7018882560.

The previous prime is 19679685827. The next prime is 19679685869. The reversal of 19679685860 is 6858697691.

It is not an unprimeable number, because it can be changed into a prime (19679685869) 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, 1516736 + ... + 1529655.

It is an arithmetic number, because the mean of its divisors is an integer number (959613480).

Almost surely, 2^19679685860 is an apocalyptic number.

19679685860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19679685860 is an abundant number, since it is smaller than the sum of its proper divisors (26381761180).

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

19679685860 is a wasteful number, since it uses less digits than its factorization.

19679685860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046436 (or 3046434 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 65.

The spelling of 19679685860 in words is "nineteen billion, six hundred seventy-nine million, six hundred eighty-five thousand, eight hundred sixty".