26570905712 has 80 divisors (see below), whose sum is σ = 57464967840. Its totient is φ = 11817501696.

The previous prime is 26570905681. The next prime is 26570905747. The reversal of 26570905712 is 21750907562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3295478 + ... + 3303530.

It is an arithmetic number, because the mean of its divisors is an integer number (718312098).

Almost surely, 2^26570905712 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 26570905712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28732483920).

26570905712 is an abundant number, since it is smaller than the sum of its proper divisors (30894062128).

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

26570905712 is a wasteful number, since it uses less digits than its factorization.

26570905712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8650 (or 8644 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 44.

The spelling of 26570905712 in words is "twenty-six billion, five hundred seventy million, nine hundred five thousand, seven hundred twelve".