51327831217200 has 60 divisors (see below), whose sum is σ = 164420152669608. Its totient is φ = 13687421657600.

The previous prime is 51327831217193. The next prime is 51327831217217. The reversal of 51327831217200 is 271213872315.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×51327831217200² (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 11 ways as a sum of consecutive naturals, for example, 21386595141 + ... + 21386597540.

Almost surely, 2^{51327831217200} is an apocalyptic number.

51327831217200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51327831217200 is an abundant number, since it is smaller than the sum of its proper divisors (113092321452408).

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

51327831217200 is a wasteful number, since it uses less digits than its factorization.

51327831217200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42773192702 (or 42773192691 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 51327831217200 in words is "fifty-one trillion, three hundred twenty-seven billion, eight hundred thirty-one million, two hundred seventeen thousand, two hundred".