26692225081 has 4 divisors (see below), whose sum is σ = 26696141712. Its totient is φ = 26688308452.

The previous prime is 26692225057. The next prime is 26692225123. The reversal of 26692225081 is 18052229662.

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 26692225081 - 2²¹ = 26690127929 is a prime.

It is a super-2 number, since 2×26692225081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26692225481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1948075 + ... + 1961728.

It is an arithmetic number, because the mean of its divisors is an integer number (6674035428).

Almost surely, 2^26692225081 is an apocalyptic number.

It is an amenable number.

26692225081 is a deficient number, since it is larger than the sum of its proper divisors (3916631).

26692225081 is an equidigital number, since it uses as much as digits as its factorization.

26692225081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916630.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 26692225081 in words is "twenty-six billion, six hundred ninety-two million, two hundred twenty-five thousand, eighty-one".