51729637359 has 16 divisors (see below), whose sum is σ = 70873920992. Its totient is φ = 33536861568.

The previous prime is 51729637321. The next prime is 51729637403. The reversal of 51729637359 is 95373692715.

It is not a de Polignac number, because 51729637359 - 2⁸ = 51729637103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51729637299 and 51729637308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51729637459) 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, 94017 + ... + 335109.

It is an arithmetic number, because the mean of its divisors is an integer number (4429620062).

Almost surely, 2^51729637359 is an apocalyptic number.

51729637359 is a deficient number, since it is larger than the sum of its proper divisors (19144283633).

51729637359 is a wasteful number, since it uses less digits than its factorization.

51729637359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243066.

The product of its digits is 10716300, while the sum is 57.

The spelling of 51729637359 in words is "fifty-one billion, seven hundred twenty-nine million, six hundred thirty-seven thousand, three hundred fifty-nine".