26805622560 has 96 divisors (see below), whose sum is σ = 88881831360. Its totient is φ = 6771944448.

The previous prime is 26805622537. The next prime is 26805622567. The reversal of 26805622560 is 6522650862.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (26805622567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1460487 + ... + 1478726.

It is an arithmetic number, because the mean of its divisors is an integer number (925852410).

Almost surely, 2^26805622560 is an apocalyptic number.

26805622560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26805622560 is an abundant number, since it is smaller than the sum of its proper divisors (62076208800).

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

26805622560 is a wasteful number, since it uses less digits than its factorization.

26805622560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939250 (or 2939242 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 26805622560 in words is "twenty-six billion, eight hundred five million, six hundred twenty-two thousand, five hundred sixty".