26886477072 has 640 divisors, whose sum is σ = 94073978880. Its totient is φ = 6423183360.

The previous prime is 26886477031. The next prime is 26886477083. The reversal of 26886477072 is 27077468862.

It is a super-3 number, since 3×26886477072³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 277180128 + ... + 277180224.

It is an arithmetic number, because the mean of its divisors is an integer number (146990592).

Almost surely, 2^26886477072 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 26886477072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47036989440).

26886477072 is an abundant number, since it is smaller than the sum of its proper divisors (67187501808).

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

26886477072 is a wasteful number, since it uses less digits than its factorization.

26886477072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 57.

The spelling of 26886477072 in words is "twenty-six billion, eight hundred eighty-six million, four hundred seventy-seven thousand, seventy-two".