3979408305599 has 4 divisors (see below), whose sum is σ = 4086959881464. Its totient is φ = 3871856729736.

The previous prime is 3979408305577. The next prime is 3979408305617. The reversal of 3979408305599 is 9955038049793.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3979408305599 - 2⁸ = 3979408305343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3979408305529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53775787877 + ... + 53775787950.

It is an arithmetic number, because the mean of its divisors is an integer number (1021739970366).

Almost surely, 2^{3979408305599} is an apocalyptic number.

3979408305599 is a deficient number, since it is larger than the sum of its proper divisors (107551575865).

3979408305599 is a wasteful number, since it uses less digits than its factorization.

3979408305599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107551575864.

The product of its (nonzero) digits is 330674400, while the sum is 71.

The spelling of 3979408305599 in words is "three trillion, nine hundred seventy-nine billion, four hundred eight million, three hundred five thousand, five hundred ninety-nine".