51323202368 has 56 divisors (see below), whose sum is σ = 107922316032. Its totient is φ = 24132614144.

The previous prime is 51323202367. The next prime is 51323202373. The reversal of 51323202368 is 86320232315.

It is a super-2 number, since 2×51323202368² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51323202367) by changing a digit.

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, 1377521 + ... + 1414287.

Almost surely, 2^51323202368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51323202368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53961158016).

51323202368 is an abundant number, since it is smaller than the sum of its proper divisors (56599113664).

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

51323202368 is a wasteful number, since it uses less digits than its factorization.

51323202368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38079 (or 38069 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 51323202368 in words is "fifty-one billion, three hundred twenty-three million, two hundred two thousand, three hundred sixty-eight".