26260012501 has 4 divisors (see below), whose sum is σ = 26629871904. Its totient is φ = 25890153100.

The previous prime is 26260012477. The next prime is 26260012507. The reversal of 26260012501 is 10521006262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26260012501 - 2⁹ = 26260011989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26260012507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184929595 + ... + 184929736.

It is an arithmetic number, because the mean of its divisors is an integer number (6657467976).

Almost surely, 2^26260012501 is an apocalyptic number.

It is an amenable number.

26260012501 is a deficient number, since it is larger than the sum of its proper divisors (369859403).

26260012501 is an equidigital number, since it uses as much as digits as its factorization.

26260012501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369859402.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 26260012501 its reverse (10521006262), we get a palindrome (36781018763).

The spelling of 26260012501 in words is "twenty-six billion, two hundred sixty million, twelve thousand, five hundred one".