51338466718 has 32 divisors (see below), whose sum is σ = 96022506240. Its totient is φ = 19999311360.

The previous prime is 51338466713. The next prime is 51338466721. The reversal of 51338466718 is 81766483315.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51338466713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1432830 + ... + 1468222.

It is an arithmetic number, because the mean of its divisors is an integer number (3000703320).

Almost surely, 2^51338466718 is an apocalyptic number.

51338466718 is a deficient number, since it is larger than the sum of its proper divisors (44684039522).

51338466718 is a wasteful number, since it uses less digits than its factorization.

51338466718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44832.

The product of its digits is 2903040, while the sum is 52.

The spelling of 51338466718 in words is "fifty-one billion, three hundred thirty-eight million, four hundred sixty-six thousand, seven hundred eighteen".