51766383273 has 32 divisors (see below), whose sum is σ = 79807721472. Its totient is φ = 29497708800.

The previous prime is 51766383247. The next prime is 51766383313. The reversal of 51766383273 is 37238366715.

It is a happy number.

It is not a de Polignac number, because 51766383273 - 2⁵ = 51766383241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (51766383173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 504528 + ... + 598398.

It is an arithmetic number, because the mean of its divisors is an integer number (2493991296).

Almost surely, 2^51766383273 is an apocalyptic number.

It is an amenable number.

51766383273 is a deficient number, since it is larger than the sum of its proper divisors (28041338199).

51766383273 is a wasteful number, since it uses less digits than its factorization.

51766383273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94885.

The product of its digits is 3810240, while the sum is 51.

The spelling of 51766383273 in words is "fifty-one billion, seven hundred sixty-six million, three hundred eighty-three thousand, two hundred seventy-three".