26122564131 has 4 divisors (see below), whose sum is σ = 34830085512. Its totient is φ = 17415042752.

The previous prime is 26122564079. The next prime is 26122564159. The reversal of 26122564131 is 13146522162.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26122564131 - 2¹⁰ = 26122563107 is a prime.

It is a super-3 number, since 3×26122564131³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 26122564092 and 26122564101.

It is not an unprimeable number, because it can be changed into a prime (26122560131) 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, 4353760686 + ... + 4353760691.

It is an arithmetic number, because the mean of its divisors is an integer number (8707521378).

Almost surely, 2^26122564131 is an apocalyptic number.

26122564131 is a deficient number, since it is larger than the sum of its proper divisors (8707521381).

26122564131 is an equidigital number, since it uses as much as digits as its factorization.

26122564131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8707521380.

The product of its digits is 17280, while the sum is 33.

The spelling of 26122564131 in words is "twenty-six billion, one hundred twenty-two million, five hundred sixty-four thousand, one hundred thirty-one".