26459830656 has 432 divisors, whose sum is σ = 92117074140. Its totient is φ = 7548194304.

The previous prime is 26459830633. The next prime is 26459830679. The reversal of 26459830656 is 65603895462.

It is an interprime number because it is at equal distance from previous prime (26459830633) and next prime (26459830679).

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 53 ways as a sum of consecutive naturals, for example, 41150271 + ... + 41150913.

Almost surely, 2^26459830656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26459830656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46058537070).

26459830656 is an abundant number, since it is smaller than the sum of its proper divisors (65657243484).

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

26459830656 is an frugal number, since it uses more digits than its factorization.

26459830656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 26459830656 in words is "twenty-six billion, four hundred fifty-nine million, eight hundred thirty thousand, six hundred fifty-six".