17983196827 has 2 divisors, whose sum is σ = 17983196828. Its totient is φ = 17983196826.

The previous prime is 17983196821. The next prime is 17983196851. The reversal of 17983196827 is 72869138971.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17983196827 is a prime.

It is not a weakly prime, because it can be changed into another prime (17983196821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8991598413 + 8991598414.

It is an arithmetic number, because the mean of its divisors is an integer number (8991598414).

Almost surely, 2^17983196827 is an apocalyptic number.

17983196827 is a deficient number, since it is larger than the sum of its proper divisors (1).

17983196827 is an equidigital number, since it uses as much as digits as its factorization.

17983196827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 61.

The spelling of 17983196827 in words is "seventeen billion, nine hundred eighty-three million, one hundred ninety-six thousand, eight hundred twenty-seven".