27798473983 has 8 divisors (see below), whose sum is σ = 31770877952. Its totient is φ = 23826368376.

The previous prime is 27798473981. The next prime is 27798473987. The reversal of 27798473983 is 38937489772.

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 27798473983 - 2¹ = 27798473981 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 (27798473981) 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, 185566 + ... + 300052.

It is an arithmetic number, because the mean of its divisors is an integer number (3971359744).

Almost surely, 2^27798473983 is an apocalyptic number.

27798473983 is a deficient number, since it is larger than the sum of its proper divisors (3972403969).

27798473983 is a wasteful number, since it uses less digits than its factorization.

27798473983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149181.

The product of its digits is 128024064, while the sum is 67.

The spelling of 27798473983 in words is "twenty-seven billion, seven hundred ninety-eight million, four hundred seventy-three thousand, nine hundred eighty-three".