27623476661 has 8 divisors (see below), whose sum is σ = 30277522848. Its totient is φ = 24993234000.

The previous prime is 27623476649. The next prime is 27623476693. The reversal of 27623476661 is 16667432672.

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-27623476661 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 (27623476061) 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, 5948450 + ... + 5953091.

It is an arithmetic number, because the mean of its divisors is an integer number (3784690356).

Almost surely, 2^27623476661 is an apocalyptic number.

It is an amenable number.

27623476661 is a deficient number, since it is larger than the sum of its proper divisors (2654046187).

27623476661 is a wasteful number, since it uses less digits than its factorization.

27623476661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11901763.

The product of its digits is 3048192, while the sum is 50.

The spelling of 27623476661 in words is "twenty-seven billion, six hundred twenty-three million, four hundred seventy-six thousand, six hundred sixty-one".