26725025993 has 2 divisors, whose sum is σ = 26725025994. Its totient is φ = 26725025992.

The previous prime is 26725025983. The next prime is 26725026011. The reversal of 26725025993 is 39952052762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17664270649 + 9060755344 = 132907^2 + 95188^2 .

It is a cyclic number.

It is not a de Polignac number, because 26725025993 - 2⁸ = 26725025737 is a prime.

It is not a weakly prime, because it can be changed into another prime (26725025903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13362512996 + 13362512997.

It is an arithmetic number, because the mean of its divisors is an integer number (13362512997).

Almost surely, 2^26725025993 is an apocalyptic number.

It is an amenable number.

26725025993 is a deficient number, since it is larger than the sum of its proper divisors (1).

26725025993 is an equidigital number, since it uses as much as digits as its factorization.

26725025993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2041200, while the sum is 50.

The spelling of 26725025993 in words is "twenty-six billion, seven hundred twenty-five million, twenty-five thousand, nine hundred ninety-three".