26526563093 has 2 divisors, whose sum is σ = 26526563094. Its totient is φ = 26526563092.

The previous prime is 26526563051. The next prime is 26526563111. The reversal of 26526563093 is 39036562562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26126843044 + 399720049 = 161638^2 + 19993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26526563093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26526563023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13263281546 + 13263281547.

It is an arithmetic number, because the mean of its divisors is an integer number (13263281547).

Almost surely, 2^26526563093 is an apocalyptic number.

It is an amenable number.

26526563093 is a deficient number, since it is larger than the sum of its proper divisors (1).

26526563093 is an equidigital number, since it uses as much as digits as its factorization.

26526563093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1749600, while the sum is 47.

The spelling of 26526563093 in words is "twenty-six billion, five hundred twenty-six million, five hundred sixty-three thousand, ninety-three".