2677866491 has 2 divisors, whose sum is σ = 2677866492. Its totient is φ = 2677866490.

The previous prime is 2677866463. The next prime is 2677866509. The reversal of 2677866491 is 1946687762.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2677866491 - 2⁶ = 2677866427 is a prime.

It is not a weakly prime, because it can be changed into another prime (2677866421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1338933245 + 1338933246.

It is an arithmetic number, because the mean of its divisors is an integer number (1338933246).

Almost surely, 2^2677866491 is an apocalyptic number.

2677866491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2677866491 is an equidigital number, since it uses as much as digits as its factorization.

2677866491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 56.

The square root of 2677866491 is about 51748.1061585832. The cubic root of 2677866491 is about 1388.6612182523.

The spelling of 2677866491 in words is "two billion, six hundred seventy-seven million, eight hundred sixty-six thousand, four hundred ninety-one".