26528972807 has 2 divisors, whose sum is σ = 26528972808. Its totient is φ = 26528972806.

The previous prime is 26528972801. The next prime is 26528972831. The reversal of 26528972807 is 70827982562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26528972807 - 2⁴ = 26528972791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26528972801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13264486403 + 13264486404.

It is an arithmetic number, because the mean of its divisors is an integer number (13264486404).

Almost surely, 2^26528972807 is an apocalyptic number.

26528972807 is a deficient number, since it is larger than the sum of its proper divisors (1).

26528972807 is an equidigital number, since it uses as much as digits as its factorization.

26528972807 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 26528972807 in words is "twenty-six billion, five hundred twenty-eight million, nine hundred seventy-two thousand, eight hundred seven".