3913945304619 has 16 divisors (see below), whose sum is σ = 6156497684480. Its totient is φ = 2164393716480.

The previous prime is 3913945304587. The next prime is 3913945304639. The reversal of 3913945304619 is 9164035493193.

It is a happy number.

It is not a de Polignac number, because 3913945304619 - 2⁵ = 3913945304587 is a prime.

It is a super-2 number, since 2×3913945304619² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3913945304639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3006101734 + ... + 3006103035.

It is an arithmetic number, because the mean of its divisors is an integer number (384781105280).

Almost surely, 2^{3913945304619} is an apocalyptic number.

3913945304619 is a deficient number, since it is larger than the sum of its proper divisors (2242552379861).

3913945304619 is a wasteful number, since it uses less digits than its factorization.

3913945304619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6012204810.

The product of its (nonzero) digits is 9447840, while the sum is 57.

The spelling of 3913945304619 in words is "three trillion, nine hundred thirteen billion, nine hundred forty-five million, three hundred four thousand, six hundred nineteen".