51752660940 has 240 divisors, whose sum is σ = 171809003520. Its totient is φ = 13004426880.

The previous prime is 51752660923. The next prime is 51752660963. The reversal of 51752660940 is 4906625715.

51752660940 is a `hidden beast` number, since 5 + 17 + 5 + 26 + 609 + 4 + 0 = 666.

It is a super-3 number, since 3×51752660940³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 5874579 + ... + 5883381.

It is an arithmetic number, because the mean of its divisors is an integer number (715870848).

Almost surely, 2^51752660940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51752660940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85904501760).

51752660940 is an abundant number, since it is smaller than the sum of its proper divisors (120056342580).

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

51752660940 is a wasteful number, since it uses less digits than its factorization.

51752660940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9034 (or 9023 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 51752660940 in words is "fifty-one billion, seven hundred fifty-two million, six hundred sixty thousand, nine hundred forty".