3913221263319 has 48 divisors (see below), whose sum is σ = 5705666313984. Its totient is φ = 2584362153600.

The previous prime is 3913221263261. The next prime is 3913221263323. The reversal of 3913221263319 is 9133621223193.

3913221263319 is a `hidden beast` number, since 3 + 9 + 1 + 3 + 2 + 2 + 1 + 2 + 633 + 1 + 9 = 666.

It is not a de Polignac number, because 3913221263319 - 2²⁷ = 3913087045591 is a prime.

It is a super-2 number, since 2×3913221263319² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3913221265319) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 693707739 + ... + 693713379.

It is an arithmetic number, because the mean of its divisors is an integer number (118868048208).

Almost surely, 2^{3913221263319} is an apocalyptic number.

3913221263319 is a deficient number, since it is larger than the sum of its proper divisors (1792445050665).

3913221263319 is a wasteful number, since it uses less digits than its factorization.

3913221263319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7268 (or 7265 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The spelling of 3913221263319 in words is "three trillion, nine hundred thirteen billion, two hundred twenty-one million, two hundred sixty-three thousand, three hundred nineteen".