2775667149391 has 2 divisors, whose sum is σ = 2775667149392. Its totient is φ = 2775667149390.

The previous prime is 2775667149377. The next prime is 2775667149461. The reversal of 2775667149391 is 1939417665772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2775667149391 - 2²⁵ = 2775633594959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2775667149341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387833574695 + 1387833574696.

It is an arithmetic number, because the mean of its divisors is an integer number (1387833574696).

Almost surely, 2^{2775667149391} is an apocalyptic number.

2775667149391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2775667149391 is an equidigital number, since it uses as much as digits as its factorization.

2775667149391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120022560, while the sum is 67.

The spelling of 2775667149391 in words is "two trillion, seven hundred seventy-five billion, six hundred sixty-seven million, one hundred forty-nine thousand, three hundred ninety-one".