26642261356 has 12 divisors (see below), whose sum is σ = 46707666768. Its totient is φ = 13297213712.

The previous prime is 26642261323. The next prime is 26642261369. The reversal of 26642261356 is 65316224662.

It is a super-2 number, since 2×26642261356² (a number of 22 digits) contains 22 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 3 ways as a sum of consecutive naturals, for example, 5976736 + ... + 5981191.

It is an arithmetic number, because the mean of its divisors is an integer number (3892305564).

Almost surely, 2^26642261356 is an apocalyptic number.

It is an amenable number.

26642261356 is a deficient number, since it is larger than the sum of its proper divisors (20065405412).

26642261356 is a wasteful number, since it uses less digits than its factorization.

26642261356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11958488 (or 11958486 counting only the distinct ones).

The product of its digits is 622080, while the sum is 43.

The spelling of 26642261356 in words is "twenty-six billion, six hundred forty-two million, two hundred sixty-one thousand, three hundred fifty-six".