51354819671 has 8 divisors (see below), whose sum is σ = 51467361120. Its totient is φ = 51242320672.

The previous prime is 51354819643. The next prime is 51354819689. The reversal of 51354819671 is 17691845315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51354819671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51354819611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4052381 + ... + 4065033.

It is an arithmetic number, because the mean of its divisors is an integer number (6433420140).

Almost surely, 2^51354819671 is an apocalyptic number.

51354819671 is a deficient number, since it is larger than the sum of its proper divisors (112541449).

51354819671 is a wasteful number, since it uses less digits than its factorization.

51354819671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21225.

The product of its digits is 907200, while the sum is 50.

The spelling of 51354819671 in words is "fifty-one billion, three hundred fifty-four million, eight hundred nineteen thousand, six hundred seventy-one".