26926238665728 has 264 divisors, whose sum is σ = 79702113477168. Its totient is φ = 8752014655488.

The previous prime is 26926238665687. The next prime is 26926238665757. The reversal of 26926238665728 is 82756683262962.

26926238665728 is a `hidden beast` number, since 2 + 6 + 9 + 26 + 23 + 8 + 6 + 6 + 572 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79447926 + ... + 79786122.

Almost surely, 2^{26926238665728} 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 26926238665728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39851056738584).

26926238665728 is an abundant number, since it is smaller than the sum of its proper divisors (52775874811440).

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

26926238665728 is a wasteful number, since it uses less digits than its factorization.

26926238665728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338439 (or 338418 counting only the distinct ones).

The product of its digits is 1254113280, while the sum is 72.

The spelling of 26926238665728 in words is "twenty-six trillion, nine hundred twenty-six billion, two hundred thirty-eight million, six hundred sixty-five thousand, seven hundred twenty-eight".