51179325242 has 16 divisors (see below), whose sum is σ = 81302398272. Its totient is φ = 24111737760.

The previous prime is 51179325233. The next prime is 51179325283. The reversal of 51179325242 is 24252397115.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51179325242.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8299859 + ... + 8306022.

It is an arithmetic number, because the mean of its divisors is an integer number (5081399892).

Almost surely, 2^51179325242 is an apocalyptic number.

51179325242 is a deficient number, since it is larger than the sum of its proper divisors (30123073030).

51179325242 is a wasteful number, since it uses less digits than its factorization.

51179325242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16605973.

The product of its digits is 151200, while the sum is 41.

The spelling of 51179325242 in words is "fifty-one billion, one hundred seventy-nine million, three hundred twenty-five thousand, two hundred forty-two".