31914582985 has 8 divisors (see below), whose sum is σ = 38925327816. Its totient is φ = 25113114240.

The previous prime is 31914582961. The next prime is 31914582991. The reversal of 31914582985 is 58928541913.

It can be written as a sum of positive squares in 4 ways, for example, as 2092056121 + 29822526864 = 45739^2 + 172692^2 .

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

It is not a de Polignac number, because 31914582985 - 2¹⁷ = 31914451913 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 52318684 + ... + 52319293.

It is an arithmetic number, because the mean of its divisors is an integer number (4865665977).

Almost surely, 2^31914582985 is an apocalyptic number.

It is an amenable number.

31914582985 is a deficient number, since it is larger than the sum of its proper divisors (7010744831).

31914582985 is a wasteful number, since it uses less digits than its factorization.

31914582985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104638043.

The product of its digits is 3110400, while the sum is 55.

The spelling of 31914582985 in words is "thirty-one billion, nine hundred fourteen million, five hundred eighty-two thousand, nine hundred eighty-five".