3656675779 has 2 divisors, whose sum is σ = 3656675780. Its totient is φ = 3656675778.

The previous prime is 3656675749. The next prime is 3656675783. The reversal of 3656675779 is 9775766563.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3656675779 - 2⁵ = 3656675747 is a prime.

It is not a weakly prime, because it can be changed into another prime (3656675749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1828337889 + 1828337890.

It is an arithmetic number, because the mean of its divisors is an integer number (1828337890).

Almost surely, 2^3656675779 is an apocalyptic number.

3656675779 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656675779 is an equidigital number, since it uses as much as digits as its factorization.

3656675779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50009400, while the sum is 61.

The square root of 3656675779 is about 60470.4537687621. The cubic root of 3656675779 is about 1540.6198352417.

The spelling of 3656675779 in words is "three billion, six hundred fifty-six million, six hundred seventy-five thousand, seven hundred seventy-nine".