3876716639 has 2 divisors, whose sum is σ = 3876716640. Its totient is φ = 3876716638.

The previous prime is 3876716629. The next prime is 3876716663. The reversal of 3876716639 is 9366176783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3876716639 - 2²⁴ = 3859939423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3876716629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1938358319 + 1938358320.

It is an arithmetic number, because the mean of its divisors is an integer number (1938358320).

Almost surely, 2^3876716639 is an apocalyptic number.

3876716639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3876716639 is an equidigital number, since it uses as much as digits as its factorization.

3876716639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6858432, while the sum is 56.

The square root of 3876716639 is about 62263.2848394622. The cubic root of 3876716639 is about 1570.9222324504.

The spelling of 3876716639 in words is "three billion, eight hundred seventy-six million, seven hundred sixteen thousand, six hundred thirty-nine".