51719253313 has 16 divisors (see below), whose sum is σ = 63660756096. Its totient is φ = 40916684160.

The previous prime is 51719253281. The next prime is 51719253349. The reversal of 51719253313 is 31335291715.

It is a cyclic number.

It is not a de Polignac number, because 51719253313 - 2⁵ = 51719253281 is a prime.

It is a super-2 number, since 2×51719253313² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51719253613) 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, 1183470 + ... + 1226392.

It is an arithmetic number, because the mean of its divisors is an integer number (3978797256).

Almost surely, 2^51719253313 is an apocalyptic number.

It is an amenable number.

51719253313 is a deficient number, since it is larger than the sum of its proper divisors (11941502783).

51719253313 is a wasteful number, since it uses less digits than its factorization.

51719253313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56184.

The product of its digits is 85050, while the sum is 40.

The spelling of 51719253313 in words is "fifty-one billion, seven hundred nineteen million, two hundred fifty-three thousand, three hundred thirteen".