26698080816 has 300 divisors, whose sum is σ = 86358642832. Its totient is φ = 7954848000.

The previous prime is 26698080811. The next prime is 26698080817. The reversal of 26698080816 is 61808089662.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (26698080811) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 9564381 + ... + 9567171.

Almost surely, 2^26698080816 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 26698080816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43179321416).

26698080816 is an abundant number, since it is smaller than the sum of its proper divisors (59660562016).

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

26698080816 is a wasteful number, since it uses less digits than its factorization.

26698080816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894 (or 2868 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 26698080816 in words is "twenty-six billion, six hundred ninety-eight million, eighty thousand, eight hundred sixteen".