51168424280 has 16 divisors (see below), whose sum is σ = 115128954720. Its totient is φ = 20467369696.

The previous prime is 51168424249. The next prime is 51168424291. The reversal of 51168424280 is 8242486115.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 639605264 + ... + 639605343.

It is an arithmetic number, because the mean of its divisors is an integer number (7195559670).

Almost surely, 2^51168424280 is an apocalyptic number.

It is an amenable number.

51168424280 is an abundant number, since it is smaller than the sum of its proper divisors (63960530440).

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

51168424280 is a wasteful number, since it uses less digits than its factorization.

51168424280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279210618 (or 1279210614 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 51168424280 in words is "fifty-one billion, one hundred sixty-eight million, four hundred twenty-four thousand, two hundred eighty".