26664552673 has 8 divisors (see below), whose sum is σ = 29234779200. Its totient is φ = 24118688880.

The previous prime is 26664552661. The next prime is 26664552697. The reversal of 26664552673 is 37625546662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26664552673 - 2¹³ = 26664544481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26664552673.

It is not an unprimeable number, because it can be changed into a prime (26664552613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6088390 + ... + 6092767.

It is an arithmetic number, because the mean of its divisors is an integer number (3654347400).

Almost surely, 2^26664552673 is an apocalyptic number.

It is an amenable number.

26664552673 is a deficient number, since it is larger than the sum of its proper divisors (2570226527).

26664552673 is a wasteful number, since it uses less digits than its factorization.

26664552673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12181367.

The product of its digits is 10886400, while the sum is 52.

The spelling of 26664552673 in words is "twenty-six billion, six hundred sixty-four million, five hundred fifty-two thousand, six hundred seventy-three".