26527256641 has 2 divisors, whose sum is σ = 26527256642. Its totient is φ = 26527256640.

The previous prime is 26527256617. The next prime is 26527256659. The reversal of 26527256641 is 14665272562.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13736777616 + 12790479025 = 117204^2 + 113095^2 .

It is a cyclic number.

It is not a de Polignac number, because 26527256641 - 2²¹ = 26525159489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26527256591 and 26527256600.

It is not a weakly prime, because it can be changed into another prime (26527256611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13263628320 + 13263628321.

It is an arithmetic number, because the mean of its divisors is an integer number (13263628321).

Almost surely, 2^26527256641 is an apocalyptic number.

It is an amenable number.

26527256641 is a deficient number, since it is larger than the sum of its proper divisors (1).

26527256641 is an equidigital number, since it uses as much as digits as its factorization.

26527256641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 46.

The spelling of 26527256641 in words is "twenty-six billion, five hundred twenty-seven million, two hundred fifty-six thousand, six hundred forty-one".