51136133346 has 24 divisors (see below), whose sum is σ = 113789415324. Its totient is φ = 16584691680.

The previous prime is 51136133299. The next prime is 51136133369. The reversal of 51136133346 is 64333163115.

51136133346 is a `hidden beast` number, since 5 + 1 + 1 + 3 + 613 + 3 + 34 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41509580121 + 9626553225 = 203739^2 + 98115^2 .

It is a super-2 number, since 2×51136133346² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51136133346.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38389825 + ... + 38391156.

Almost surely, 2^51136133346 is an apocalyptic number.

51136133346 is an abundant number, since it is smaller than the sum of its proper divisors (62653281978).

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

51136133346 is a wasteful number, since it uses less digits than its factorization.

51136133346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76781026 (or 76781023 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The spelling of 51136133346 in words is "fifty-one billion, one hundred thirty-six million, one hundred thirty-three thousand, three hundred forty-six".