51320487822 has 8 divisors (see below), whose sum is σ = 102640975656. Its totient is φ = 17106829272.

The previous prime is 51320487793. The next prime is 51320487899. The reversal of 51320487822 is 22878402315.

It is a sphenic number, since it is the product of 3 distinct primes.

51320487822 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4276707313 + ... + 4276707324.

It is an arithmetic number, because the mean of its divisors is an integer number (12830121957).

Almost surely, 2^51320487822 is an apocalyptic number.

51320487822 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51320487822 is a wasteful number, since it uses less digits than its factorization.

51320487822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8553414642.

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 51320487822 in words is "fifty-one billion, three hundred twenty million, four hundred eighty-seven thousand, eight hundred twenty-two".