26605845321 has 16 divisors (see below), whose sum is σ = 38842226688. Its totient is φ = 16065248400.

The previous prime is 26605845319. The next prime is 26605845373. The reversal of 26605845321 is 12354850662.

It is not a de Polignac number, because 26605845321 - 2¹ = 26605845319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26605885321) 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, 1478581 + ... + 1496466.

It is an arithmetic number, because the mean of its divisors is an integer number (2427639168).

Almost surely, 2^26605845321 is an apocalyptic number.

It is an amenable number.

26605845321 is a deficient number, since it is larger than the sum of its proper divisors (12236381367).

26605845321 is a wasteful number, since it uses less digits than its factorization.

26605845321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975332.

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

The spelling of 26605845321 in words is "twenty-six billion, six hundred five million, eight hundred forty-five thousand, three hundred twenty-one".