51684568203 has 16 divisors (see below), whose sum is σ = 69763034880. Its totient is φ = 34031478624.

The previous prime is 51684568193. The next prime is 51684568241. The reversal of 51684568203 is 30286548615.

It is a happy number.

It is not a de Polignac number, because 51684568203 - 2⁸ = 51684567947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51684568603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 898125 + ... + 953937.

It is an arithmetic number, because the mean of its divisors is an integer number (4360189680).

Almost surely, 2^51684568203 is an apocalyptic number.

51684568203 is a deficient number, since it is larger than the sum of its proper divisors (18078466677).

51684568203 is a wasteful number, since it uses less digits than its factorization.

51684568203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59618.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 51684568203 in words is "fifty-one billion, six hundred eighty-four million, five hundred sixty-eight thousand, two hundred three".