26426011521643 has 16 divisors (see below), whose sum is σ = 28191285904320. Its totient is φ = 24684862836736.

The previous prime is 26426011521601. The next prime is 26426011521659. The reversal of 26426011521643 is 34612511062462.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26426011521643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26426011521643.

It is not an unprimeable number, because it can be changed into a prime (26426011528643) 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, 9783430 + ... + 12188827.

It is an arithmetic number, because the mean of its divisors is an integer number (1761955369020).

Almost surely, 2^{26426011521643} is an apocalyptic number.

26426011521643 is a deficient number, since it is larger than the sum of its proper divisors (1765274382677).

26426011521643 is a wasteful number, since it uses less digits than its factorization.

26426011521643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21972806.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 26426011521643 in words is "twenty-six trillion, four hundred twenty-six billion, eleven million, five hundred twenty-one thousand, six hundred forty-three".