26952645977 has 2 divisors, whose sum is σ = 26952645978. Its totient is φ = 26952645976.

The previous prime is 26952645961. The next prime is 26952646001. The reversal of 26952645977 is 77954625962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13591829056 + 13360816921 = 116584^2 + 115589^2 .

It is a cyclic number.

It is not a de Polignac number, because 26952645977 - 2⁴ = 26952645961 is a prime.

It is a super-2 number, since 2×26952645977² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26952645077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13476322988 + 13476322989.

It is an arithmetic number, because the mean of its divisors is an integer number (13476322989).

Almost surely, 2^26952645977 is an apocalyptic number.

It is an amenable number.

26952645977 is a deficient number, since it is larger than the sum of its proper divisors (1).

26952645977 is an equidigital number, since it uses as much as digits as its factorization.

26952645977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57153600, while the sum is 62.

The spelling of 26952645977 in words is "twenty-six billion, nine hundred fifty-two million, six hundred forty-five thousand, nine hundred seventy-seven".