26645134727 has 8 divisors (see below), whose sum is σ = 27234306000. Its totient is φ = 26060548864.

The previous prime is 26645134699. The next prime is 26645134753. The reversal of 26645134727 is 72743154662.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26645134727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26645131727) 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, 1134602 + ... + 1157847.

It is an arithmetic number, because the mean of its divisors is an integer number (3404288250).

Almost surely, 2^26645134727 is an apocalyptic number.

26645134727 is a deficient number, since it is larger than the sum of its proper divisors (589171273).

26645134727 is a wasteful number, since it uses less digits than its factorization.

26645134727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292705.

The product of its digits is 1693440, while the sum is 47.

The spelling of 26645134727 in words is "twenty-six billion, six hundred forty-five million, one hundred thirty-four thousand, seven hundred twenty-seven".