51283657263 has 8 divisors (see below), whose sum is σ = 68755990576. Its totient is φ = 34000214400.

The previous prime is 51283657261. The next prime is 51283657357. The reversal of 51283657263 is 36275638215.

It is a happy number.

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

It is not a de Polignac number, because 51283657263 - 2¹ = 51283657261 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 (51283657261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47221978 + ... + 47223063.

It is an arithmetic number, because the mean of its divisors is an integer number (8594498822).

Almost surely, 2^51283657263 is an apocalyptic number.

51283657263 is a deficient number, since it is larger than the sum of its proper divisors (17472333313).

51283657263 is a wasteful number, since it uses less digits than its factorization.

51283657263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94445225.

The product of its digits is 1814400, while the sum is 48.

The spelling of 51283657263 in words is "fifty-one billion, two hundred eighty-three million, six hundred fifty-seven thousand, two hundred sixty-three".