3891914913 has 16 divisors (see below), whose sum is σ = 5539276800. Its totient is φ = 2423428560.

The previous prime is 3891914899. The next prime is 3891914963. The reversal of 3891914913 is 3194191983.

It is not a de Polignac number, because 3891914913 - 2⁹ = 3891914401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3891914963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476793 + ... + 484886.

It is an arithmetic number, because the mean of its divisors is an integer number (346204800).

Almost surely, 2^3891914913 is an apocalyptic number.

It is an amenable number.

3891914913 is a deficient number, since it is larger than the sum of its proper divisors (1647361887).

3891914913 is a wasteful number, since it uses less digits than its factorization.

3891914913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961772.

The product of its digits is 209952, while the sum is 48.

The square root of 3891914913 is about 62385.2138972048. The cubic root of 3891914913 is about 1572.9724359499.

The spelling of 3891914913 in words is "three billion, eight hundred ninety-one million, nine hundred fourteen thousand, nine hundred thirteen".