26788840560641 has 4 divisors (see below), whose sum is σ = 26906853074352. Its totient is φ = 26670828046932.

The previous prime is 26788840560631. The next prime is 26788840560667. The reversal of 26788840560641 is 14606504888762.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26788840560641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26788840560611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59006256515 + ... + 59006256968.

It is an arithmetic number, because the mean of its divisors is an integer number (6726713268588).

Almost surely, 2^{26788840560641} is an apocalyptic number.

It is an amenable number.

26788840560641 is a deficient number, since it is larger than the sum of its proper divisors (118012513711).

26788840560641 is a wasteful number, since it uses less digits than its factorization.

26788840560641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118012513710.

The product of its (nonzero) digits is 123863040, while the sum is 65.

The spelling of 26788840560641 in words is "twenty-six trillion, seven hundred eighty-eight billion, eight hundred forty million, five hundred sixty thousand, six hundred forty-one".