19686160872 has 192 divisors, whose sum is σ = 61518412800. Its totient is φ = 5570933760.

The previous prime is 19686160853. The next prime is 19686160877. The reversal of 19686160872 is 27806168691.

19686160872 is a `hidden beast` number, since 19 + 6 + 8 + 616 + 0 + 8 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (19686160877) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32431593 + ... + 32432199.

It is an arithmetic number, because the mean of its divisors is an integer number (320408400).

Almost surely, 2^19686160872 is an apocalyptic number.

19686160872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19686160872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30759206400).

19686160872 is an abundant number, since it is smaller than the sum of its proper divisors (41832251928).

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

19686160872 is a wasteful number, since it uses less digits than its factorization.

19686160872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 19686160872 in words is "nineteen billion, six hundred eighty-six million, one hundred sixty thousand, eight hundred seventy-two".