3959639034613 has 2 divisors, whose sum is σ = 3959639034614. Its totient is φ = 3959639034612.

The previous prime is 3959639034599. The next prime is 3959639034647. The reversal of 3959639034613 is 3164309369593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3877205159844 + 82433874769 = 1969062^2 + 287113^2 .

It is a cyclic number.

It is not a de Polignac number, because 3959639034613 - 2⁹ = 3959639034101 is a prime.

It is a super-2 number, since 2×3959639034613² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3959639074613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1979819517306 + 1979819517307.

It is an arithmetic number, because the mean of its divisors is an integer number (1979819517307).

Almost surely, 2^{3959639034613} is an apocalyptic number.

It is an amenable number.

3959639034613 is a deficient number, since it is larger than the sum of its proper divisors (1).

3959639034613 is an equidigital number, since it uses as much as digits as its factorization.

3959639034613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42515280, while the sum is 61.

The spelling of 3959639034613 in words is "three trillion, nine hundred fifty-nine billion, six hundred thirty-nine million, thirty-four thousand, six hundred thirteen".