1678231082309 has 8 divisors (see below), whose sum is σ = 1736130236160. Its totient is φ = 1620333869616.

The previous prime is 1678231082263. The next prime is 1678231082323. The reversal of 1678231082309 is 9032801328761.

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-1678231082309 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 (1678231082809) 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, 1397504 + ... + 2304230.

It is an arithmetic number, because the mean of its divisors is an integer number (217016279520).

Almost surely, 2^{1678231082309} is an apocalyptic number.

It is an amenable number.

1678231082309 is a deficient number, since it is larger than the sum of its proper divisors (57899153851).

1678231082309 is an equidigital number, since it uses as much as digits as its factorization.

1678231082309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970579.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 1678231082309 in words is "one trillion, six hundred seventy-eight billion, two hundred thirty-one million, eighty-two thousand, three hundred nine".