51822016488 has 512 divisors, whose sum is σ = 170760960000. Its totient is φ = 14514888960.

The previous prime is 51822016429. The next prime is 51822016529. The reversal of 51822016488 is 88461022815.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 289508383 + ... + 289508561.

It is an arithmetic number, because the mean of its divisors is an integer number (333517500).

Almost surely, 2^51822016488 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 51822016488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85380480000).

51822016488 is an abundant number, since it is smaller than the sum of its proper divisors (118938943512).

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

51822016488 is a wasteful number, since it uses less digits than its factorization.

51822016488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The spelling of 51822016488 in words is "fifty-one billion, eight hundred twenty-two million, sixteen thousand, four hundred eighty-eight".