26690008320 has 432 divisors, whose sum is σ = 98847840000. Its totient is φ = 6628884480.

The previous prime is 26690008253. The next prime is 26690008351. The reversal of 26690008320 is 2380009662.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 13350681 + ... + 13352679.

Almost surely, 2^26690008320 is an apocalyptic number.

26690008320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26690008320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49423920000).

26690008320 is an abundant number, since it is smaller than the sum of its proper divisors (72157831680).

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

26690008320 is a wasteful number, since it uses less digits than its factorization.

26690008320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106 (or 2089 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 26690008320 in words is "twenty-six billion, six hundred ninety million, eight thousand, three hundred twenty".