19319004136 has 64 divisors (see below), whose sum is σ = 39137677200. Its totient is φ = 8906047488.

The previous prime is 19319004113. The next prime is 19319004149. The reversal of 19319004136 is 63140091391.

It can be written as a sum of positive squares in 8 ways, for example, as 19262664100 + 56340036 = 138790^2 + 7506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19319004095 and 19319004104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5829616 + ... + 5832928.

Almost surely, 2^19319004136 is an apocalyptic number.

It is an amenable number.

19319004136 is an abundant number, since it is smaller than the sum of its proper divisors (19818673064).

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

19319004136 is a wasteful number, since it uses less digits than its factorization.

19319004136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4198 (or 4194 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 19319004136 in words is "nineteen billion, three hundred nineteen million, four thousand, one hundred thirty-six".