51603867129 has 8 divisors (see below), whose sum is σ = 68818206112. Its totient is φ = 34396053120.

The previous prime is 51603867127. The next prime is 51603867167. The reversal of 51603867129 is 92176830615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51603867129 - 2¹ = 51603867127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51603867121) 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 7 ways as a sum of consecutive naturals, for example, 1612759 + ... + 1644444.

It is an arithmetic number, because the mean of its divisors is an integer number (8602275764).

Almost surely, 2^51603867129 is an apocalyptic number.

It is an amenable number.

51603867129 is a deficient number, since it is larger than the sum of its proper divisors (17214338983).

51603867129 is a wasteful number, since it uses less digits than its factorization.

51603867129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262487.

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 51603867129 in words is "fifty-one billion, six hundred three million, eight hundred sixty-seven thousand, one hundred twenty-nine".