3911809917677 has 2 divisors, whose sum is σ = 3911809917678. Its totient is φ = 3911809917676.

The previous prime is 3911809917599. The next prime is 3911809917707. The reversal of 3911809917677 is 7767199081193.

3911809917677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2933344715401 + 978465202276 = 1712701^2 + 989174^2 .

It is a cyclic number.

It is not a de Polignac number, because 3911809917677 - 2¹² = 3911809913581 is a prime.

It is a super-2 number, since 2×3911809917677² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3911809917277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1955904958838 + 1955904958839.

It is an arithmetic number, because the mean of its divisors is an integer number (1955904958839).

Almost surely, 2^{3911809917677} is an apocalyptic number.

It is an amenable number.

3911809917677 is a deficient number, since it is larger than the sum of its proper divisors (1).

3911809917677 is an equidigital number, since it uses as much as digits as its factorization.

3911809917677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36006768, while the sum is 68.

The spelling of 3911809917677 in words is "three trillion, nine hundred eleven billion, eight hundred nine million, nine hundred seventeen thousand, six hundred seventy-seven".