51146134818 has 8 divisors (see below), whose sum is σ = 102292269648. Its totient is φ = 17048711604.

The previous prime is 51146134813. The next prime is 51146134829. The reversal of 51146134818 is 81843164115.

It is a sphenic number, since it is the product of 3 distinct primes.

51146134818 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 51146134818.

It is not an unprimeable number, because it can be changed into a prime (51146134813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4262177896 + ... + 4262177907.

It is an arithmetic number, because the mean of its divisors is an integer number (12786533706).

Almost surely, 2^51146134818 is an apocalyptic number.

51146134818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51146134818 is a wasteful number, since it uses less digits than its factorization.

51146134818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8524355808.

The product of its digits is 92160, while the sum is 42.

The spelling of 51146134818 in words is "fifty-one billion, one hundred forty-six million, one hundred thirty-four thousand, eight hundred eighteen".