27661814983 has 8 divisors (see below), whose sum is σ = 30406882176. Its totient is φ = 24955140600.

The previous prime is 27661814953. The next prime is 27661814987. The reversal of 27661814983 is 38941816672.

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

It is a cyclic number.

It is not a de Polignac number, because 27661814983 - 2⁹ = 27661814471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27661814987) 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, 9596691 + ... + 9599572.

It is an arithmetic number, because the mean of its divisors is an integer number (3800860272).

Almost surely, 2^27661814983 is an apocalyptic number.

27661814983 is a deficient number, since it is larger than the sum of its proper divisors (2745067193).

27661814983 is a wasteful number, since it uses less digits than its factorization.

27661814983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19196405.

The product of its digits is 3483648, while the sum is 55.

The spelling of 27661814983 in words is "twenty-seven billion, six hundred sixty-one million, eight hundred fourteen thousand, nine hundred eighty-three".