51838727361 has 16 divisors (see below), whose sum is σ = 69346035840. Its totient is φ = 34445473920.

The previous prime is 51838727359. The next prime is 51838727371. The reversal of 51838727361 is 16372783815.

It is not a de Polignac number, because 51838727361 - 2¹ = 51838727359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51838727371) 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, 1105356 + ... + 1151298.

It is an arithmetic number, because the mean of its divisors is an integer number (4334127240).

Almost surely, 2^51838727361 is an apocalyptic number.

It is an amenable number.

51838727361 is a deficient number, since it is larger than the sum of its proper divisors (17507308479).

51838727361 is a wasteful number, since it uses less digits than its factorization.

51838727361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47176.

The product of its digits is 1693440, while the sum is 51.

The spelling of 51838727361 in words is "fifty-one billion, eight hundred thirty-eight million, seven hundred twenty-seven thousand, three hundred sixty-one".