2650774961 has 2 divisors, whose sum is σ = 2650774962. Its totient is φ = 2650774960.

The previous prime is 2650774871. The next prime is 2650774981. The reversal of 2650774961 is 1694770562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2641960000 + 8814961 = 51400^2 + 2969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2650774961 is a prime.

It is not a weakly prime, because it can be changed into another prime (2650774981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325387480 + 1325387481.

It is an arithmetic number, because the mean of its divisors is an integer number (1325387481).

Almost surely, 2^2650774961 is an apocalyptic number.

It is an amenable number.

2650774961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2650774961 is an equidigital number, since it uses as much as digits as its factorization.

2650774961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 2650774961 is about 51485.6772413455. The cubic root of 2650774961 is about 1383.9623851319.

The spelling of 2650774961 in words is "two billion, six hundred fifty million, seven hundred seventy-four thousand, nine hundred sixty-one".