51968355942 has 16 divisors (see below), whose sum is σ = 103987710720. Its totient is φ = 17314285512.

The previous prime is 51968355911. The next prime is 51968355961. The reversal of 51968355942 is 24955386915.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 2111698 + ... + 2136165.

It is an arithmetic number, because the mean of its divisors is an integer number (6499231920).

Almost surely, 2^51968355942 is an apocalyptic number.

51968355942 is an abundant number, since it is smaller than the sum of its proper divisors (52019354778).

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

51968355942 is a wasteful number, since it uses less digits than its factorization.

51968355942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4249907.

The product of its digits is 11664000, while the sum is 57.

The spelling of 51968355942 in words is "fifty-one billion, nine hundred sixty-eight million, three hundred fifty-five thousand, nine hundred forty-two".