26817860466 has 12 divisors (see below), whose sum is σ = 58105364382. Its totient is φ = 8939286816.

The previous prime is 26817860429. The next prime is 26817860483. The reversal of 26817860466 is 66406871862.

26817860466 is a `hidden beast` number, since 2 + 6 + 8 + 178 + 6 + 0 + 466 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25563213225 + 1254647241 = 159885^2 + 35421^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 744940551 + ... + 744940586.

Almost surely, 2^26817860466 is an apocalyptic number.

26817860466 is an abundant number, since it is smaller than the sum of its proper divisors (31287503916).

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

26817860466 is a wasteful number, since it uses less digits than its factorization.

26817860466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489881145 (or 1489881142 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 26817860466 in words is "twenty-six billion, eight hundred seventeen million, eight hundred sixty thousand, four hundred sixty-six".