26646770880 has 280 divisors, whose sum is σ = 95860575360. Its totient is φ = 7025356800.

The previous prime is 26646770879. The next prime is 26646770903. The reversal of 26646770880 is 8807764662.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2301105 + ... + 2312655.

Almost surely, 2^26646770880 is an apocalyptic number.

26646770880 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 26646770880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47930287680).

26646770880 is an abundant number, since it is smaller than the sum of its proper divisors (69213804480).

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

26646770880 is a wasteful number, since it uses less digits than its factorization.

26646770880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11669 (or 11650 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 26646770880 in words is "twenty-six billion, six hundred forty-six million, seven hundred seventy thousand, eight hundred eighty".