2650641226657 has 2 divisors, whose sum is σ = 2650641226658. Its totient is φ = 2650641226656.

The previous prime is 2650641226619. The next prime is 2650641226663. The reversal of 2650641226657 is 7566221460562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2476471889761 + 174169336896 = 1573681^2 + 417336^2 .

It is a cyclic number.

It is not a de Polignac number, because 2650641226657 - 2⁷ = 2650641226529 is a prime.

It is not a weakly prime, because it can be changed into another prime (2650641226687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325320613328 + 1325320613329.

It is an arithmetic number, because the mean of its divisors is an integer number (1325320613329).

Almost surely, 2^{2650641226657} is an apocalyptic number.

It is an amenable number.

2650641226657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2650641226657 is an equidigital number, since it uses as much as digits as its factorization.

2650641226657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 2650641226657 in words is "two trillion, six hundred fifty billion, six hundred forty-one million, two hundred twenty-six thousand, six hundred fifty-seven".