19712693560 has 32 divisors (see below), whose sum is σ = 50689784160. Its totient is φ = 6758637696.

The previous prime is 19712693551. The next prime is 19712693573. The reversal of 19712693560 is 6539621791.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

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, 35200959 + ... + 35201518.

It is an arithmetic number, because the mean of its divisors is an integer number (1584055755).

Almost surely, 2^19712693560 is an apocalyptic number.

19712693560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19712693560 is an abundant number, since it is smaller than the sum of its proper divisors (30977090600).

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

19712693560 is a wasteful number, since it uses less digits than its factorization.

19712693560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70402495 (or 70402491 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 49.

The spelling of 19712693560 in words is "nineteen billion, seven hundred twelve million, six hundred ninety-three thousand, five hundred sixty".