26276138891 has 8 divisors (see below), whose sum is σ = 26543029968. Its totient is φ = 26009380000.

The previous prime is 26276138879. The next prime is 26276138909. The reversal of 26276138891 is 19883167262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26276138891 - 2³⁰ = 25202397067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26276138831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394421 + ... + 456201.

It is an arithmetic number, because the mean of its divisors is an integer number (3317878746).

Almost surely, 2^26276138891 is an apocalyptic number.

26276138891 is a deficient number, since it is larger than the sum of its proper divisors (266891077).

26276138891 is a wasteful number, since it uses less digits than its factorization.

26276138891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66093.

The product of its digits is 1741824, while the sum is 53.

The spelling of 26276138891 in words is "twenty-six billion, two hundred seventy-six million, one hundred thirty-eight thousand, eight hundred ninety-one".