2687709413377 has 2 divisors, whose sum is σ = 2687709413378. Its totient is φ = 2687709413376.

The previous prime is 2687709413327. The next prime is 2687709413387. The reversal of 2687709413377 is 7733149077862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2295252270081 + 392457143296 = 1515009^2 + 626464^2 .

It is a cyclic number.

It is not a de Polignac number, because 2687709413377 - 2¹¹ = 2687709411329 is a prime.

It is not a weakly prime, because it can be changed into another prime (2687709413327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343854706688 + 1343854706689.

It is an arithmetic number, because the mean of its divisors is an integer number (1343854706689).

Almost surely, 2^{2687709413377} is an apocalyptic number.

It is an amenable number.

2687709413377 is a deficient number, since it is larger than the sum of its proper divisors (1).

2687709413377 is an equidigital number, since it uses as much as digits as its factorization.

2687709413377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74680704, while the sum is 64.

The spelling of 2687709413377 in words is "two trillion, six hundred eighty-seven billion, seven hundred nine million, four hundred thirteen thousand, three hundred seventy-seven".