51752197844 has 12 divisors (see below), whose sum is σ = 95893778484. Its totient is φ = 24353975424.

The previous prime is 51752197843. The next prime is 51752197859. The reversal of 51752197844 is 44879125715.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20118018244 + 31634179600 = 141838^2 + 177860^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51752197843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380530799 + ... + 380530934.

It is an arithmetic number, because the mean of its divisors is an integer number (7991148207).

Almost surely, 2^51752197844 is an apocalyptic number.

It is an amenable number.

51752197844 is a deficient number, since it is larger than the sum of its proper divisors (44141580640).

51752197844 is a wasteful number, since it uses less digits than its factorization.

51752197844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761061754 (or 761061752 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 53.

The spelling of 51752197844 in words is "fifty-one billion, seven hundred fifty-two million, one hundred ninety-seven thousand, eight hundred forty-four".