51012015075 has 144 divisors (see below), whose sum is σ = 106992437760. Its totient is φ = 22751516160.

The previous prime is 51012015037. The next prime is 51012015091. The reversal of 51012015075 is 57051021015.

It is not a de Polignac number, because 51012015075 - 2¹⁰ = 51012014051 is a prime.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 12728722 + ... + 12732728.

It is an arithmetic number, because the mean of its divisors is an integer number (743003040).

Almost surely, 2^51012015075 is an apocalyptic number.

51012015075 is an abundant number, since it is smaller than the sum of its proper divisors (55980422685).

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

51012015075 is a wasteful number, since it uses less digits than its factorization.

51012015075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4226 (or 4218 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 27.

The spelling of 51012015075 in words is "fifty-one billion, twelve million, fifteen thousand, seventy-five".