26260624400641 has 2 divisors, whose sum is σ = 26260624400642. Its totient is φ = 26260624400640.

The previous prime is 26260624400639. The next prime is 26260624400671. The reversal of 26260624400641 is 14600442606262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24167695084225 + 2092929316416 = 4916065^2 + 1446696^2 .

It is a cyclic number.

It is not a de Polignac number, because 26260624400641 - 2¹ = 26260624400639 is a prime.

Together with 26260624400639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26260624400671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13130312200320 + 13130312200321.

It is an arithmetic number, because the mean of its divisors is an integer number (13130312200321).

Almost surely, 2^{26260624400641} is an apocalyptic number.

It is an amenable number.

26260624400641 is a deficient number, since it is larger than the sum of its proper divisors (1).

26260624400641 is an equidigital number, since it uses as much as digits as its factorization.

26260624400641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 26260624400641 in words is "twenty-six trillion, two hundred sixty billion, six hundred twenty-four million, four hundred thousand, six hundred forty-one".