26512056635761 has 16 divisors (see below), whose sum is σ = 27819354908160. Its totient is φ = 25231140728640.

The previous prime is 26512056635747. The next prime is 26512056635767. The reversal of 26512056635761 is 16753665021562.

It is a cyclic number.

It is not a de Polignac number, because 26512056635761 - 2³³ = 26503466701169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26512056635767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6854536 + ... + 10000438.

It is an arithmetic number, because the mean of its divisors is an integer number (1738709681760).

Almost surely, 2^{26512056635761} is an apocalyptic number.

It is an amenable number.

26512056635761 is a deficient number, since it is larger than the sum of its proper divisors (1307298272399).

26512056635761 is a wasteful number, since it uses less digits than its factorization.

26512056635761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150096.

The product of its (nonzero) digits is 13608000, while the sum is 55.

The spelling of 26512056635761 in words is "twenty-six trillion, five hundred twelve billion, fifty-six million, six hundred thirty-five thousand, seven hundred sixty-one".