26434044655 has 4 divisors (see below), whose sum is σ = 31720853592. Its totient is φ = 21147235720.

The previous prime is 26434044631. The next prime is 26434044683. The reversal of 26434044655 is 55644043462.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-26434044655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2643404461 + ... + 2643404470.

It is an arithmetic number, because the mean of its divisors is an integer number (7930213398).

Almost surely, 2^26434044655 is an apocalyptic number.

26434044655 is a deficient number, since it is larger than the sum of its proper divisors (5286808937).

26434044655 is an equidigital number, since it uses as much as digits as its factorization.

26434044655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286808936.

The product of its (nonzero) digits is 1382400, while the sum is 43.

The spelling of 26434044655 in words is "twenty-six billion, four hundred thirty-four million, forty-four thousand, six hundred fifty-five".