26664674244 has 24 divisors (see below), whose sum is σ = 67003540800. Its totient is φ = 8204515104.

The previous prime is 26664674243. The next prime is 26664674261. The reversal of 26664674244 is 44247646662.

It is a super-2 number, since 2×26664674244² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26664674243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85463544 + ... + 85463855.

It is an arithmetic number, because the mean of its divisors is an integer number (2791814200).

Almost surely, 2^26664674244 is an apocalyptic number.

It is an amenable number.

26664674244 is an abundant number, since it is smaller than the sum of its proper divisors (40338866556).

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

26664674244 is a wasteful number, since it uses less digits than its factorization.

26664674244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170927419 (or 170927417 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 51.

The spelling of 26664674244 in words is "twenty-six billion, six hundred sixty-four million, six hundred seventy-four thousand, two hundred forty-four".