52120137792 has 28 divisors (see below), whose sum is σ = 137901198416. Its totient is φ = 17373379200.

The previous prime is 52120137791. The next prime is 52120137809. The reversal of 52120137792 is 29773102125.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 52120137792.

It is not an unprimeable number, because it can be changed into a prime (52120137791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135729334 + ... + 135729717.

Almost surely, 2^52120137792 is an apocalyptic number.

It is an amenable number.

52120137792 is an abundant number, since it is smaller than the sum of its proper divisors (85781060624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52120137792 is a wasteful number, since it uses less digits than its factorization.

52120137792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271459066 (or 271459056 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The spelling of 52120137792 in words is "fifty-two billion, one hundred twenty million, one hundred thirty-seven thousand, seven hundred ninety-two".