51183744018 has 16 divisors (see below), whose sum is σ = 111673623456. Its totient is φ = 15510225440.

The previous prime is 51183743987. The next prime is 51183744023. The reversal of 51183744018 is 81044738115.

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, 387755571 + ... + 387755702.

It is an arithmetic number, because the mean of its divisors is an integer number (6979601466).

Almost surely, 2^51183744018 is an apocalyptic number.

51183744018 is an abundant number, since it is smaller than the sum of its proper divisors (60489879438).

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

51183744018 is a wasteful number, since it uses less digits than its factorization.

51183744018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775511289.

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 51183744018 in words is "fifty-one billion, one hundred eighty-three million, seven hundred forty-four thousand, eighteen".