51671144673 has 16 divisors (see below), whose sum is σ = 76553389440. Its totient is φ = 34445834352.

The previous prime is 51671144669. The next prime is 51671144711. The reversal of 51671144673 is 37644117615.

It is a happy number.

51671144673 is a `hidden beast` number, since 516 + 71 + 1 + 4 + 4 + 67 + 3 = 666.

It is not a de Polignac number, because 51671144673 - 2² = 51671144669 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51671144633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 979315 + ... + 1030727.

It is an arithmetic number, because the mean of its divisors is an integer number (4784586840).

Almost surely, 2^51671144673 is an apocalyptic number.

It is an amenable number.

51671144673 is a deficient number, since it is larger than the sum of its proper divisors (24882244767).

51671144673 is a wasteful number, since it uses less digits than its factorization.

51671144673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88645 (or 88639 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The spelling of 51671144673 in words is "fifty-one billion, six hundred seventy-one million, one hundred forty-four thousand, six hundred seventy-three".