3163215794721 has 8 divisors (see below), whose sum is σ = 4217652609504. Its totient is φ = 2108794754880.

The previous prime is 3163215794701. The next prime is 3163215794737. The reversal of 3163215794721 is 1274975123613.

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

It is not a de Polignac number, because 3163215794721 - 2¹¹ = 3163215792673 is a prime.

It is a super-2 number, since 2×3163215794721² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3163215794701) by changing a digit.

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, 3467640 + ... + 4283801.

It is an arithmetic number, because the mean of its divisors is an integer number (527206576188).

Almost surely, 2^{3163215794721} is an apocalyptic number.

It is an amenable number.

3163215794721 is a deficient number, since it is larger than the sum of its proper divisors (1054436814783).

3163215794721 is a wasteful number, since it uses less digits than its factorization.

3163215794721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7887471.

The product of its digits is 1905120, while the sum is 51.

The spelling of 3163215794721 in words is "three trillion, one hundred sixty-three billion, two hundred fifteen million, seven hundred ninety-four thousand, seven hundred twenty-one".