19319317000 has 32 divisors (see below), whose sum is σ = 45207204120. Its totient is φ = 7727726400.

The previous prime is 19319316949. The next prime is 19319317001. The reversal of 19319317000 is 71391391.

It can be written as a sum of positive squares in 4 ways, for example, as 6317388324 + 13001928676 = 79482^2 + 114026^2 .

It is not an unprimeable number, because it can be changed into a prime (19319317001) 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, 9658659 + ... + 9660658.

Almost surely, 2^19319317000 is an apocalyptic number.

19319317000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19319317000 is an abundant number, since it is smaller than the sum of its proper divisors (25887887120).

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

19319317000 is a wasteful number, since it uses less digits than its factorization.

19319317000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19319338 (or 19319324 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 34.

The spelling of 19319317000 in words is "nineteen billion, three hundred nineteen million, three hundred seventeen thousand".