51359528012 has 24 divisors (see below), whose sum is σ = 96799130736. Its totient is φ = 23702885568.

The previous prime is 51359528009. The next prime is 51359528021. The reversal of 51359528012 is 21082595315.

It is a happy number.

It is a super-3 number, since 3×51359528012³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1510058 + ... + 1543694.

It is an arithmetic number, because the mean of its divisors is an integer number (4033297114).

Almost surely, 2^51359528012 is an apocalyptic number.

51359528012 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51359528012 is a deficient number, since it is larger than the sum of its proper divisors (45439602724).

51359528012 is a wasteful number, since it uses less digits than its factorization.

51359528012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63017 (or 63015 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 41.

The spelling of 51359528012 in words is "fifty-one billion, three hundred fifty-nine million, five hundred twenty-eight thousand, twelve".