3213816979252 has 12 divisors (see below), whose sum is σ = 6135468778656. Its totient is φ = 1460825899640.

The previous prime is 3213816979151. The next prime is 3213816979313. The reversal of 3213816979252 is 2529796183123.

It is a happy number.

It is a super-2 number, since 2×3213816979252² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36520647448 + ... + 36520647535.

It is an arithmetic number, because the mean of its divisors is an integer number (511289064888).

Almost surely, 2^{3213816979252} is an apocalyptic number.

It is an amenable number.

3213816979252 is a deficient number, since it is larger than the sum of its proper divisors (2921651799404).

3213816979252 is a wasteful number, since it uses less digits than its factorization.

3213816979252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73041294998 (or 73041294996 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 58.

The spelling of 3213816979252 in words is "three trillion, two hundred thirteen billion, eight hundred sixteen million, nine hundred seventy-nine thousand, two hundred fifty-two".