3919500194813 has 16 divisors (see below), whose sum is σ = 4743003475584. Its totient is φ = 3161897157120.

The previous prime is 3919500194809. The next prime is 3919500194821. The reversal of 3919500194813 is 3184910059193.

It is a cyclic number.

It is not a de Polignac number, because 3919500194813 - 2² = 3919500194809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3919500104813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7944281 + ... + 8423217.

It is an arithmetic number, because the mean of its divisors is an integer number (296437717224).

Almost surely, 2^{3919500194813} is an apocalyptic number.

It is an amenable number.

3919500194813 is a deficient number, since it is larger than the sum of its proper divisors (823503280771).

3919500194813 is a wasteful number, since it uses less digits than its factorization.

3919500194813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547732.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The spelling of 3919500194813 in words is "three trillion, nine hundred nineteen billion, five hundred million, one hundred ninety-four thousand, eight hundred thirteen".