26090781712 has 20 divisors (see below), whose sum is σ = 52294024620. Its totient is φ = 12595549568.

The previous prime is 26090781709. The next prime is 26090781719. The reversal of 26090781712 is 21718709062.

It can be written as a sum of positive squares in 2 ways, for example, as 19483693056 + 6607088656 = 139584^2 + 81284^2 .

It is not an unprimeable number, because it can be changed into a prime (26090781719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28114603 + ... + 28115530.

It is an arithmetic number, because the mean of its divisors is an integer number (2614701231).

Almost surely, 2^26090781712 is an apocalyptic number.

It is an amenable number.

26090781712 is an abundant number, since it is smaller than the sum of its proper divisors (26203242908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26090781712 is a wasteful number, since it uses less digits than its factorization.

26090781712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56230170 (or 56230164 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 26090781712 in words is "twenty-six billion, ninety million, seven hundred eighty-one thousand, seven hundred twelve".