19313814140 has 24 divisors (see below), whose sum is σ = 41072418240. Its totient is φ = 7627733568.

The previous prime is 19313814109. The next prime is 19313814187. The reversal of 19313814140 is 4141831391.

It is a self number, because there is not a number n which added to its sum of digits gives 19313814140.

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, 6110387 + ... + 6113546.

It is an arithmetic number, because the mean of its divisors is an integer number (1711350760).

Almost surely, 2^19313814140 is an apocalyptic number.

19313814140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19313814140 is an abundant number, since it is smaller than the sum of its proper divisors (21758604100).

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

19313814140 is a wasteful number, since it uses less digits than its factorization.

19313814140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12224021 (or 12224019 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 19313814140 in words is "nineteen billion, three hundred thirteen million, eight hundred fourteen thousand, one hundred forty".