51983515773 has 144 divisors (see below), whose sum is σ = 96426489600. Its totient is φ = 27587589120.

The previous prime is 51983515751. The next prime is 51983515799. The reversal of 51983515773 is 37751538915.

It is a happy number.

51983515773 is a `hidden beast` number, since 5 + 19 + 8 + 3 + 51 + 577 + 3 = 666.

It is not a de Polignac number, because 51983515773 - 2⁵ = 51983515741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51983515733) 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 143 ways as a sum of consecutive naturals, for example, 30204553 + ... + 30206273.

It is an arithmetic number, because the mean of its divisors is an integer number (669628400).

Almost surely, 2^51983515773 is an apocalyptic number.

It is an amenable number.

51983515773 is a deficient number, since it is larger than the sum of its proper divisors (44442973827).

51983515773 is a wasteful number, since it uses less digits than its factorization.

51983515773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857 (or 1827 counting only the distinct ones).

The product of its digits is 3969000, while the sum is 54.

The spelling of 51983515773 in words is "fifty-one billion, nine hundred eighty-three million, five hundred fifteen thousand, seven hundred seventy-three".