51950118528 has 768 divisors, whose sum is σ = 196035840000. Its totient is φ = 13302558720.

The previous prime is 51950118511. The next prime is 51950118541. The reversal of 51950118528 is 82581105915.

It is a happy number.

51950118528 is a `hidden beast` number, since 5 + 1 + 9 + 5 + 0 + 118 + 528 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 261055773 + ... + 261055971.

It is an arithmetic number, because the mean of its divisors is an integer number (255255000).

Almost surely, 2^51950118528 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 51950118528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98017920000).

51950118528 is an abundant number, since it is smaller than the sum of its proper divisors (144085721472).

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

51950118528 is a wasteful number, since it uses less digits than its factorization.

51950118528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 45.

The spelling of 51950118528 in words is "fifty-one billion, nine hundred fifty million, one hundred eighteen thousand, five hundred twenty-eight".