26912643266 has 16 divisors (see below), whose sum is σ = 41159186424. Its totient is φ = 13193266944.

The previous prime is 26912643227. The next prime is 26912643293. The reversal of 26912643266 is 66234621962.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24085488025 + 2827155241 = 155195^2 + 53171^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26912643266.

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, 66650 + ... + 241386.

Almost surely, 2^26912643266 is an apocalyptic number.

26912643266 is a deficient number, since it is larger than the sum of its proper divisors (14246543158).

26912643266 is a wasteful number, since it uses less digits than its factorization.

26912643266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176245.

The product of its digits is 1119744, while the sum is 47.

The spelling of 26912643266 in words is "twenty-six billion, nine hundred twelve million, six hundred forty-three thousand, two hundred sixty-six".