26115566736 has 320 divisors, whose sum is σ = 86756590080. Its totient is φ = 6595706880.

The previous prime is 26115566639. The next prime is 26115566749. The reversal of 26115566736 is 63766551162.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6126846 + ... + 6131106.

It is an arithmetic number, because the mean of its divisors is an integer number (271114344).

Almost surely, 2^26115566736 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 26115566736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43378295040).

26115566736 is an abundant number, since it is smaller than the sum of its proper divisors (60641023344).

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

26115566736 is a wasteful number, since it uses less digits than its factorization.

26115566736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4362 (or 4356 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 48.

The spelling of 26115566736 in words is "twenty-six billion, one hundred fifteen million, five hundred sixty-six thousand, seven hundred thirty-six".