26797815800 has 144 divisors (see below), whose sum is σ = 73560704760. Its totient is φ = 9050469120.

The previous prime is 26797815797. The next prime is 26797815823. The reversal of 26797815800 is 851879762.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 636194 + ... + 677006.

Almost surely, 2^26797815800 is an apocalyptic number.

26797815800 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 26797815800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36780352380).

26797815800 is an abundant number, since it is smaller than the sum of its proper divisors (46762888960).

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

26797815800 is a wasteful number, since it uses less digits than its factorization.

26797815800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40910 (or 40894 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 26797815800 in words is "twenty-six billion, seven hundred ninety-seven million, eight hundred fifteen thousand, eight hundred".