3979408305577 has 2 divisors, whose sum is σ = 3979408305578. Its totient is φ = 3979408305576.

The previous prime is 3979408305571. The next prime is 3979408305617. The reversal of 3979408305577 is 7755038049793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2154777383056 + 1824630922521 = 1467916^2 + 1350789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3979408305577 is a prime.

It is not a weakly prime, because it can be changed into another prime (3979408305571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1989704152788 + 1989704152789.

It is an arithmetic number, because the mean of its divisors is an integer number (1989704152789).

Almost surely, 2^{3979408305577} is an apocalyptic number.

It is an amenable number.

3979408305577 is a deficient number, since it is larger than the sum of its proper divisors (1).

3979408305577 is an equidigital number, since it uses as much as digits as its factorization.

3979408305577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200037600, while the sum is 67.

The spelling of 3979408305577 in words is "three trillion, nine hundred seventy-nine billion, four hundred eight million, three hundred five thousand, five hundred seventy-seven".