51441368318 has 16 divisors (see below), whose sum is σ = 79658367360. Its totient is φ = 24888729600.

The previous prime is 51441368299. The next prime is 51441368327. The reversal of 51441368318 is 81386314415.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802478 + ... + 864206.

It is an arithmetic number, because the mean of its divisors is an integer number (4978647960).

Almost surely, 2^51441368318 is an apocalyptic number.

51441368318 is a deficient number, since it is larger than the sum of its proper divisors (28216999042).

51441368318 is a wasteful number, since it uses less digits than its factorization.

51441368318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75203.

The product of its digits is 276480, while the sum is 44.

The spelling of 51441368318 in words is "fifty-one billion, four hundred forty-one million, three hundred sixty-eight thousand, three hundred eighteen".