3910938813 has 24 divisors (see below), whose sum is σ = 5805474168. Its totient is φ = 2535224832.

The previous prime is 3910938797. The next prime is 3910938817. The reversal of 3910938813 is 3188390193.

It is a happy number.

3910938813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 262537209 + 3648401604 = 16203^2 + 60402^2 .

It is not a de Polignac number, because 3910938813 - 2⁴ = 3910938797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3910938817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 762345 + ... + 767457.

It is an arithmetic number, because the mean of its divisors is an integer number (241894757).

Almost surely, 2^3910938813 is an apocalyptic number.

It is an amenable number.

3910938813 is a deficient number, since it is larger than the sum of its proper divisors (1894535355).

3910938813 is a wasteful number, since it uses less digits than its factorization.

3910938813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7453 (or 7450 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 3910938813 is about 62537.4992544473. The cubic root of 3910938813 is about 1575.5311973923.

The spelling of 3910938813 in words is "three billion, nine hundred ten million, nine hundred thirty-eight thousand, eight hundred thirteen".