312646646213 has 8 divisors (see below), whose sum is σ = 361131955200. Its totient is φ = 267505151680.

The previous prime is 312646646107. The next prime is 312646646243.

312646646213 is nontrivially palindromic in base 10.

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 312646646213 - 2⁸ = 312646645957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312646646243) 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, 835953413 + ... + 835953786.

It is an arithmetic number, because the mean of its divisors is an integer number (45141494400).

Almost surely, 2^312646646213 is an apocalyptic number.

It is an amenable number.

312646646213 is a deficient number, since it is larger than the sum of its proper divisors (48485308987).

312646646213 is a wasteful number, since it uses less digits than its factorization.

312646646213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671907227.

The product of its digits is 746496, while the sum is 44.

It can be divided in two parts, 312646 and 646213, that added together give a palindrome (958859).

The spelling of 312646646213 in words is "three hundred twelve billion, six hundred forty-six million, six hundred forty-six thousand, two hundred thirteen".