26466021328 has 40 divisors (see below), whose sum is σ = 54450030600. Its totient is φ = 12418867200.

The previous prime is 26466021293. The next prime is 26466021343. The reversal of 26466021328 is 82312066462.

It can be written as a sum of positive squares in 4 ways, for example, as 17043824704 + 9422196624 = 130552^2 + 97068^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44473 + ... + 234328.

It is an arithmetic number, because the mean of its divisors is an integer number (1361250765).

Almost surely, 2^26466021328 is an apocalyptic number.

It is an amenable number.

26466021328 is an abundant number, since it is smaller than the sum of its proper divisors (27984009272).

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

26466021328 is a wasteful number, since it uses less digits than its factorization.

26466021328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279175 (or 279169 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 26466021328 in words is "twenty-six billion, four hundred sixty-six million, twenty-one thousand, three hundred twenty-eight".