26229522816 has 640 divisors, whose sum is σ = 94281660000. Its totient is φ = 7169347584.

The previous prime is 26229522779. The next prime is 26229522833. The reversal of 26229522816 is 61822592262.

It is a happy number.

26229522816 is a `hidden beast` number, since 2 + 622 + 9 + 5 + 2 + 2 + 8 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 240637770 + ... + 240637878.

Almost surely, 2^26229522816 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 26229522816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47140830000).

26229522816 is an abundant number, since it is smaller than the sum of its proper divisors (68052137184).

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

26229522816 is an equidigital number, since it uses as much as digits as its factorization.

26229522816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 150 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The spelling of 26229522816 in words is "twenty-six billion, two hundred twenty-nine million, five hundred twenty-two thousand, eight hundred sixteen".