26662960897 has 2 divisors, whose sum is σ = 26662960898. Its totient is φ = 26662960896.

The previous prime is 26662960829. The next prime is 26662960949. The reversal of 26662960897 is 79806926662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26652521536 + 10439361 = 163256^2 + 3231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26662960897 is a prime.

It is not a weakly prime, because it can be changed into another prime (26662960817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13331480448 + 13331480449.

It is an arithmetic number, because the mean of its divisors is an integer number (13331480449).

Almost surely, 2^26662960897 is an apocalyptic number.

It is an amenable number.

26662960897 is a deficient number, since it is larger than the sum of its proper divisors (1).

26662960897 is an equidigital number, since it uses as much as digits as its factorization.

26662960897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 26662960897 in words is "twenty-six billion, six hundred sixty-two million, nine hundred sixty thousand, eight hundred ninety-seven".