51191713685382 has 16 divisors (see below), whose sum is σ = 102653568344640. Its totient is φ = 17018881066152.

The previous prime is 51191713685309. The next prime is 51191713685407. The reversal of 51191713685382 is 28358631719115.

It is a super-2 number, since 2×51191713685382² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11255871448 + ... + 11255875995.

It is an arithmetic number, because the mean of its divisors is an integer number (6415848021540).

Almost surely, 2^{51191713685382} is an apocalyptic number.

51191713685382 is an abundant number, since it is smaller than the sum of its proper divisors (51461854659258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51191713685382 is a wasteful number, since it uses less digits than its factorization.

51191713685382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22511747827.

The product of its digits is 10886400, while the sum is 60.

The spelling of 51191713685382 in words is "fifty-one trillion, one hundred ninety-one billion, seven hundred thirteen million, six hundred eighty-five thousand, three hundred eighty-two".