26666949362672 has 40 divisors (see below), whose sum is σ = 51755452692000. Its totient is φ = 13310705221632.

The previous prime is 26666949362579. The next prime is 26666949362687. The reversal of 26666949362672 is 27626394966662.

It is a happy number.

It is a super-2 number, since 2×26666949362672² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26666949362672.

It is a congruent number.

It is an unprimeable number.

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, 437929604 + ... + 437990492.

It is an arithmetic number, because the mean of its divisors is an integer number (1293886317300).

Almost surely, 2^{26666949362672} is an apocalyptic number.

It is an amenable number.

26666949362672 is a deficient number, since it is larger than the sum of its proper divisors (25088503329328).

26666949362672 is a wasteful number, since it uses less digits than its factorization.

26666949362672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107193 (or 107187 counting only the distinct ones).

The product of its digits is 2539579392, while the sum is 74.

The spelling of 26666949362672 in words is "twenty-six trillion, six hundred sixty-six billion, nine hundred forty-nine million, three hundred sixty-two thousand, six hundred seventy-two".