52181212492 has 6 divisors (see below), whose sum is σ = 91317121868. Its totient is φ = 26090606244.

The previous prime is 52181212453. The next prime is 52181212543. The reversal of 52181212492 is 29421218125.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6522651558 + ... + 6522651565.

Almost surely, 2^52181212492 is an apocalyptic number.

It is an amenable number.

52181212492 is a deficient number, since it is larger than the sum of its proper divisors (39135909376).

52181212492 is a wasteful number, since it uses less digits than its factorization.

52181212492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13045303127 (or 13045303125 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The spelling of 52181212492 in words is "fifty-two billion, one hundred eighty-one million, two hundred twelve thousand, four hundred ninety-two".