26150874681 has 4 divisors (see below), whose sum is σ = 34867832912. Its totient is φ = 17433916452.

The previous prime is 26150874649. The next prime is 26150874703. The reversal of 26150874681 is 18647805162.

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 not a de Polignac number, because 26150874681 - 2⁵ = 26150874649 is a prime.

It is a super-2 number, since 2×26150874681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26150874681.

It is not an unprimeable number, because it can be changed into a prime (26150874601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4358479111 + ... + 4358479116.

It is an arithmetic number, because the mean of its divisors is an integer number (8716958228).

Almost surely, 2^26150874681 is an apocalyptic number.

It is an amenable number.

26150874681 is a deficient number, since it is larger than the sum of its proper divisors (8716958231).

26150874681 is an equidigital number, since it uses as much as digits as its factorization.

26150874681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8716958230.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 26150874681 in words is "twenty-six billion, one hundred fifty million, eight hundred seventy-four thousand, six hundred eighty-one".