26640467133 has 8 divisors (see below), whose sum is σ = 40594997568. Its totient is φ = 15223124064.

The previous prime is 26640467129. The next prime is 26640467153. The reversal of 26640467133 is 33176404662.

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

It is not a de Polignac number, because 26640467133 - 2² = 26640467129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26640467153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634296816 + ... + 634296857.

It is an arithmetic number, because the mean of its divisors is an integer number (5074374696).

Almost surely, 2^26640467133 is an apocalyptic number.

It is an amenable number.

26640467133 is a deficient number, since it is larger than the sum of its proper divisors (13954530435).

26640467133 is a wasteful number, since it uses less digits than its factorization.

26640467133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268593683.

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 26640467133 in words is "twenty-six billion, six hundred forty million, four hundred sixty-seven thousand, one hundred thirty-three".