19317677740 has 24 divisors (see below), whose sum is σ = 41430255552. Its totient is φ = 7562664960.

The previous prime is 19317677723. The next prime is 19317677741. The reversal of 19317677740 is 4777671391.

It is not an unprimeable number, because it can be changed into a prime (19317677741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10274421 + ... + 10276300.

It is an arithmetic number, because the mean of its divisors is an integer number (1726260648).

Almost surely, 2^19317677740 is an apocalyptic number.

19317677740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19317677740 is an abundant number, since it is smaller than the sum of its proper divisors (22112577812).

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

19317677740 is a wasteful number, since it uses less digits than its factorization.

19317677740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20550777 (or 20550775 counting only the distinct ones).

The product of its (nonzero) digits is 1555848, while the sum is 52.

The spelling of 19317677740 in words is "nineteen billion, three hundred seventeen million, six hundred seventy-seven thousand, seven hundred forty".