2640313177 has 2 divisors, whose sum is σ = 2640313178. Its totient is φ = 2640313176.

The previous prime is 2640313141. The next prime is 2640313289. The reversal of 2640313177 is 7713130462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2044757961 + 595555216 = 45219^2 + 24404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2640313177 is a prime.

It is not a weakly prime, because it can be changed into another prime (2640313127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320156588 + 1320156589.

It is an arithmetic number, because the mean of its divisors is an integer number (1320156589).

Almost surely, 2^2640313177 is an apocalyptic number.

It is an amenable number.

2640313177 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640313177 is an equidigital number, since it uses as much as digits as its factorization.

2640313177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 2640313177 is about 51383.9778238314. The cubic root of 2640313177 is about 1382.1392949933.

The spelling of 2640313177 in words is "two billion, six hundred forty million, three hundred thirteen thousand, one hundred seventy-seven".