43161686312 has 16 divisors (see below), whose sum is σ = 80935185300. Its totient is φ = 21578970240.

The previous prime is 43161686287. The next prime is 43161686327. The reversal of 43161686312 is 21368616134.

It can be written as a sum of positive squares in 2 ways, for example, as 42219564676 + 942121636 = 205474^2 + 30694^2 .

It is a super-2 number, since 2×43161686312² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43161686312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133637 + ... + 322772.

Almost surely, 2^43161686312 is an apocalyptic number.

It is an amenable number.

43161686312 is a deficient number, since it is larger than the sum of its proper divisors (37773498988).

43161686312 is a wasteful number, since it uses less digits than its factorization.

43161686312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468236 (or 468232 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The spelling of 43161686312 in words is "forty-three billion, one hundred sixty-one million, six hundred eighty-six thousand, three hundred twelve".