51738696719 has 24 divisors (see below), whose sum is σ = 57479245440. Its totient is φ = 46354600512.

The previous prime is 51738696697. The next prime is 51738696721. The reversal of 51738696719 is 91769683715.

It is not a de Polignac number, because 51738696719 - 2¹² = 51738692623 is a prime.

It is a super-2 number, since 2×51738696719² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51738696319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3454004 + ... + 3468950.

It is an arithmetic number, because the mean of its divisors is an integer number (2394968560).

Almost surely, 2^51738696719 is an apocalyptic number.

51738696719 is a deficient number, since it is larger than the sum of its proper divisors (5740548721).

51738696719 is a wasteful number, since it uses less digits than its factorization.

51738696719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15167 (or 15078 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 62.

The spelling of 51738696719 in words is "fifty-one billion, seven hundred thirty-eight million, six hundred ninety-six thousand, seven hundred nineteen".