26747424639 has 20 divisors (see below), whose sum is σ = 43029571816. Its totient is φ = 16459952976.

The previous prime is 26747424593. The next prime is 26747424751. The reversal of 26747424639 is 93642474762.

It is not a de Polignac number, because 26747424639 - 2⁸ = 26747424383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26747424139) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12699529 + ... + 12701634.

Almost surely, 2^26747424639 is an apocalyptic number.

26747424639 is a deficient number, since it is larger than the sum of its proper divisors (16282147177).

26747424639 is a wasteful number, since it uses less digits than its factorization.

26747424639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25401188 (or 25401179 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 54.

The spelling of 26747424639 in words is "twenty-six billion, seven hundred forty-seven million, four hundred twenty-four thousand, six hundred thirty-nine".