26500013881 has 16 divisors (see below), whose sum is σ = 29052691200. Its totient is φ = 23971571200.

The previous prime is 26500013879. The next prime is 26500013909. The reversal of 26500013881 is 18831000562.

It is a cyclic number.

It is not a de Polignac number, because 26500013881 - 2¹ = 26500013879 is a prime.

It is a super-2 number, since 2×26500013881² (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 (26500013081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1837065 + ... + 1851433.

It is an arithmetic number, because the mean of its divisors is an integer number (1815793200).

Almost surely, 2^26500013881 is an apocalyptic number.

It is an amenable number.

26500013881 is a deficient number, since it is larger than the sum of its proper divisors (2552677319).

26500013881 is a wasteful number, since it uses less digits than its factorization.

26500013881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15200.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 26500013881 in words is "twenty-six billion, five hundred million, thirteen thousand, eight hundred eighty-one".