26681788877 has 16 divisors (see below), whose sum is σ = 27979929600. Its totient is φ = 25413073920.

The previous prime is 26681788849. The next prime is 26681788879. The reversal of 26681788877 is 77888718662.

It is not a de Polignac number, because 26681788877 - 2⁸ = 26681788621 is a prime.

It is a super-2 number, since 2×26681788877² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26681788879) 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, 759149 + ... + 793517.

It is an arithmetic number, because the mean of its divisors is an integer number (1748745600).

Almost surely, 2^26681788877 is an apocalyptic number.

It is an amenable number.

26681788877 is a deficient number, since it is larger than the sum of its proper divisors (1298140723).

26681788877 is a wasteful number, since it uses less digits than its factorization.

26681788877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34796.

The product of its digits is 101154816, while the sum is 68.

The spelling of 26681788877 in words is "twenty-six billion, six hundred eighty-one million, seven hundred eighty-eight thousand, eight hundred seventy-seven".