312646994197 has 8 divisors (see below), whose sum is σ = 314585512416. Its totient is φ = 310708725552.

The previous prime is 312646994173. The next prime is 312646994239. The reversal of 312646994197 is 791499646213.

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 312646994197 - 2³¹ = 310499510549 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 (312646904197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2878563 + ... + 2985199.

It is an arithmetic number, because the mean of its divisors is an integer number (39323189052).

Almost surely, 2^312646994197 is an apocalyptic number.

It is an amenable number.

312646994197 is a deficient number, since it is larger than the sum of its proper divisors (1938518219).

312646994197 is a wasteful number, since it uses less digits than its factorization.

312646994197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124787.

The product of its digits is 17635968, while the sum is 61.

The spelling of 312646994197 in words is "three hundred twelve billion, six hundred forty-six million, nine hundred ninety-four thousand, one hundred ninety-seven".