51012015047 has 16 divisors (see below), whose sum is σ = 58661079360. Its totient is φ = 43453573632.

The previous prime is 51012015037. The next prime is 51012015091. The reversal of 51012015047 is 74051021015.

It is not a de Polignac number, because 51012015047 - 2⁶ = 51012014983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51012015037) 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 15 ways as a sum of consecutive naturals, for example, 3423329 + ... + 3438197.

It is an arithmetic number, because the mean of its divisors is an integer number (3666317460).

Almost surely, 2^51012015047 is an apocalyptic number.

51012015047 is a deficient number, since it is larger than the sum of its proper divisors (7649064313).

51012015047 is a wasteful number, since it uses less digits than its factorization.

51012015047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17882.

The product of its (nonzero) digits is 1400, while the sum is 26.

The spelling of 51012015047 in words is "fifty-one billion, twelve million, fifteen thousand, forty-seven".