3879389479679 has 12 divisors (see below), whose sum is σ = 4516679985408. Its totient is φ = 3322301976000.

The previous prime is 3879389479661. The next prime is 3879389479681. The reversal of 3879389479679 is 9769749839783.

It is not a de Polignac number, because 3879389479679 - 2²⁴ = 3879372702463 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3879389479594 and 3879389479603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3879389470679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34335962 + ... + 34448759.

It is an arithmetic number, because the mean of its divisors is an integer number (376389998784).

Almost surely, 2^{3879389479679} is an apocalyptic number.

3879389479679 is a deficient number, since it is larger than the sum of its proper divisors (637290505729).

3879389479679 is a wasteful number, since it uses less digits than its factorization.

3879389479679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68785886 (or 68785879 counting only the distinct ones).

The product of its digits is 31109847552, while the sum is 89.

The spelling of 3879389479679 in words is "three trillion, eight hundred seventy-nine billion, three hundred eighty-nine million, four hundred seventy-nine thousand, six hundred seventy-nine".