27726077261 has 8 divisors (see below), whose sum is σ = 27841454784. Its totient is φ = 27610775680.

The previous prime is 27726077251. The next prime is 27726077287. The reversal of 27726077261 is 16277062772.

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-27726077261 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 (27726077251) 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, 782450 + ... + 817116.

It is an arithmetic number, because the mean of its divisors is an integer number (3480181848).

Almost surely, 2^27726077261 is an apocalyptic number.

It is an amenable number.

27726077261 is a deficient number, since it is larger than the sum of its proper divisors (115377523).

27726077261 is a wasteful number, since it uses less digits than its factorization.

27726077261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37971.

The product of its (nonzero) digits is 691488, while the sum is 47.

The spelling of 27726077261 in words is "twenty-seven billion, seven hundred twenty-six million, seventy-seven thousand, two hundred sixty-one".