2674664664761 has 4 divisors (see below), whose sum is σ = 2674934815524. Its totient is φ = 2674394514000.

The previous prime is 2674664664677. The next prime is 2674664664781. The reversal of 2674664664761 is 1674664664762.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1111852149136 + 1562812515625 = 1054444^2 + 1250125^2 .

It is a cyclic number.

It is not a de Polignac number, because 2674664664761 - 2¹⁴ = 2674664648377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2674664664781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135060530 + ... + 135080331.

It is an arithmetic number, because the mean of its divisors is an integer number (668733703881).

Almost surely, 2^{2674664664761} is an apocalyptic number.

It is an amenable number.

2674664664761 is a deficient number, since it is larger than the sum of its proper divisors (270150763).

2674664664761 is an equidigital number, since it uses as much as digits as its factorization.

2674664664761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270150762.

The product of its digits is 292626432, while the sum is 65.

Subtracting from 2674664664761 its reverse (1674664664762), we obtain a palindrome (999999999999).

The spelling of 2674664664761 in words is "two trillion, six hundred seventy-four billion, six hundred sixty-four million, six hundred sixty-four thousand, seven hundred sixty-one".