26465658768 has 240 divisors, whose sum is σ = 82744037376. Its totient is φ = 8165266560.

The previous prime is 26465658743. The next prime is 26465658773. The reversal of 26465658768 is 86785656462.

It is a happy number.

26465658768 is a `hidden beast` number, since 2 + 6 + 4 + 6 + 565 + 8 + 7 + 68 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2767371 + ... + 2776917.

Almost surely, 2^26465658768 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 26465658768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41372018688).

26465658768 is an abundant number, since it is smaller than the sum of its proper divisors (56278378608).

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

26465658768 is a wasteful number, since it uses less digits than its factorization.

26465658768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9624 (or 9606 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 63.

The spelling of 26465658768 in words is "twenty-six billion, four hundred sixty-five million, six hundred fifty-eight thousand, seven hundred sixty-eight".