3979751313 has 16 divisors (see below), whose sum is σ = 5375784960. Its totient is φ = 2618508624.

The previous prime is 3979751309. The next prime is 3979751327. The reversal of 3979751313 is 3131579793.

It is not a de Polignac number, because 3979751313 - 2² = 3979751309 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3979751353) 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, 251020 + ... + 266402.

It is an arithmetic number, because the mean of its divisors is an integer number (335986560).

Almost surely, 2^3979751313 is an apocalyptic number.

It is an amenable number.

3979751313 is a deficient number, since it is larger than the sum of its proper divisors (1396033647).

3979751313 is a wasteful number, since it uses less digits than its factorization.

3979751313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16508.

The product of its digits is 535815, while the sum is 48.

The square root of 3979751313 is about 63085.2701745820. The cubic root of 3979751313 is about 1584.7179538407.

The spelling of 3979751313 in words is "three billion, nine hundred seventy-nine million, seven hundred fifty-one thousand, three hundred thirteen".