51012016143 has 24 divisors (see below), whose sum is σ = 76258949760. Its totient is φ = 30080769120.

The previous prime is 51012016141. The next prime is 51012016147. The reversal of 51012016143 is 34161021015.

It is a happy number.

It is not a de Polignac number, because 51012016143 - 2¹ = 51012016141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51012016141) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 519403 + ... + 609756.

It is an arithmetic number, because the mean of its divisors is an integer number (3177456240).

Almost surely, 2^51012016143 is an apocalyptic number.

51012016143 is a deficient number, since it is larger than the sum of its proper divisors (25246933617).

51012016143 is a wasteful number, since it uses less digits than its factorization.

51012016143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129247 (or 1129210 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 51012016143 its reverse (34161021015), we get a palindrome (85173037158).

The spelling of 51012016143 in words is "fifty-one billion, twelve million, sixteen thousand, one hundred forty-three".