52129621832 has 36 divisors (see below), whose sum is σ = 98962726905. Its totient is φ = 25743533376.

The previous prime is 52129621813. The next prime is 52129621879. The reversal of 52129621832 is 23812692125.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 46598129956 + 5531491876 = 215866^2 + 74374^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=161446.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52129621832.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 57474323 + ... + 57475229.

Almost surely, 2^52129621832 is an apocalyptic number.

It is an amenable number.

52129621832 is a deficient number, since it is larger than the sum of its proper divisors (46833105073).

52129621832 is an frugal number, since it uses more digits than its factorization.

52129621832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998 (or 998 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The spelling of 52129621832 in words is "fifty-two billion, one hundred twenty-nine million, six hundred twenty-one thousand, eight hundred thirty-two".