13879450577 has 2 divisors, whose sum is σ = 13879450578. Its totient is φ = 13879450576.

The previous prime is 13879450499. The next prime is 13879450591. The reversal of 13879450577 is 77505497831.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12363438481 + 1516012096 = 111191^2 + 38936^2 .

It is a cyclic number.

It is not a de Polignac number, because 13879450577 - 2¹² = 13879446481 is a prime.

It is not a weakly prime, because it can be changed into another prime (13879450477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6939725288 + 6939725289.

It is an arithmetic number, because the mean of its divisors is an integer number (6939725289).

Almost surely, 2^13879450577 is an apocalyptic number.

It is an amenable number.

13879450577 is a deficient number, since it is larger than the sum of its proper divisors (1).

13879450577 is an equidigital number, since it uses as much as digits as its factorization.

13879450577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7408800, while the sum is 56.

The spelling of 13879450577 in words is "thirteen billion, eight hundred seventy-nine million, four hundred fifty thousand, five hundred seventy-seven".