51311606344002 has 48 divisors (see below), whose sum is σ = 112951165284672. Its totient is φ = 16831163210400.

The previous prime is 51311606343967. The next prime is 51311606344027. The reversal of 51311606344002 is 20044360611315.

51311606344002 is a `hidden beast` number, since 5 + 1 + 3 + 1 + 1 + 606 + 3 + 4 + 40 + 0 + 2 = 666.

It is a super-2 number, since 2×51311606344002² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20833249 + ... + 23165652.

It is an arithmetic number, because the mean of its divisors is an integer number (2353149276764).

Almost surely, 2^{51311606344002} is an apocalyptic number.

51311606344002 is an abundant number, since it is smaller than the sum of its proper divisors (61639558940670).

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

51311606344002 is a wasteful number, since it uses less digits than its factorization.

51311606344002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43999943 (or 43999940 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 51311606344002 its reverse (20044360611315), we get a palindrome (71355966955317).

The spelling of 51311606344002 in words is "fifty-one trillion, three hundred eleven billion, six hundred six million, three hundred forty-four thousand, two".