19314368736 has 96 divisors (see below), whose sum is σ = 54773597088. Its totient is φ = 5924014080.

The previous prime is 19314368719. The next prime is 19314368753. The reversal of 19314368736 is 63786341391.

It is an interprime number because it is at equal distance from previous prime (19314368719) and next prime (19314368753).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (51) 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 15 ways as a sum of consecutive naturals, for example, 371206 + ... + 420026.

It is an arithmetic number, because the mean of its divisors is an integer number (570558303).

Almost surely, 2^19314368736 is an apocalyptic number.

19314368736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19314368736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27386798544).

19314368736 is an abundant number, since it is smaller than the sum of its proper divisors (35459228352).

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

19314368736 is a wasteful number, since it uses less digits than its factorization.

19314368736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49164 (or 49156 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 51.

The spelling of 19314368736 in words is "nineteen billion, three hundred fourteen million, three hundred sixty-eight thousand, seven hundred thirty-six".