26570074889 has 2 divisors, whose sum is σ = 26570074890. Its totient is φ = 26570074888.

The previous prime is 26570074837. The next prime is 26570074913. The reversal of 26570074889 is 98847007562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22823655625 + 3746419264 = 151075^2 + 61208^2 .

It is a cyclic number.

It is not a de Polignac number, because 26570074889 - 2¹⁶ = 26570009353 is a prime.

It is not a weakly prime, because it can be changed into another prime (26570074589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13285037444 + 13285037445.

It is an arithmetic number, because the mean of its divisors is an integer number (13285037445).

Almost surely, 2^26570074889 is an apocalyptic number.

It is an amenable number.

26570074889 is a deficient number, since it is larger than the sum of its proper divisors (1).

26570074889 is an equidigital number, since it uses as much as digits as its factorization.

26570074889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 26570074889 in words is "twenty-six billion, five hundred seventy million, seventy-four thousand, eight hundred eighty-nine".