1913765964319 has 6 divisors (see below), whose sum is σ = 2103560936120. Its totient is φ = 1739787240180.

The previous prime is 1913765964289. The next prime is 1913765964323. The reversal of 1913765964319 is 9134695673191.

It is not a de Polignac number, because 1913765964319 - 2⁷ = 1913765964191 is a prime.

It is a super-2 number, since 2×1913765964319² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913765964329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7908123699 + ... + 7908123940.

Almost surely, 2^{1913765964319} is an apocalyptic number.

1913765964319 is a deficient number, since it is larger than the sum of its proper divisors (189794971801).

1913765964319 is a wasteful number, since it uses less digits than its factorization.

1913765964319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15816247661 (or 15816247650 counting only the distinct ones).

The product of its digits is 33067440, while the sum is 64.

The spelling of 1913765964319 in words is "one trillion, nine hundred thirteen billion, seven hundred sixty-five million, nine hundred sixty-four thousand, three hundred nineteen".