316989447985 has 16 divisors (see below), whose sum is σ = 434740876416. Its totient is φ = 217357947648.

The previous prime is 316989447979. The next prime is 316989448079. The reversal of 316989447985 is 589744989613.

It is a cyclic number.

It is not a de Polignac number, because 316989447985 - 2⁹ = 316989447473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1339129 + ... + 1557961.

It is an arithmetic number, because the mean of its divisors is an integer number (27171304776).

Almost surely, 2^316989447985 is an apocalyptic number.

316989447985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

316989447985 is a deficient number, since it is larger than the sum of its proper divisors (117751428431).

316989447985 is a wasteful number, since it uses less digits than its factorization.

316989447985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260232.

The product of its digits is 470292480, while the sum is 73.

The spelling of 316989447985 in words is "three hundred sixteen billion, nine hundred eighty-nine million, four hundred forty-seven thousand, nine hundred eighty-five".