51984571100 has 72 divisors (see below), whose sum is σ = 140641915008. Its totient is φ = 16202980800.

The previous prime is 51984571081. The next prime is 51984571103. The reversal of 51984571100 is 117548915.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51984571103) 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 23 ways as a sum of consecutive naturals, for example, 3367922 + ... + 3383321.

Almost surely, 2^51984571100 is an apocalyptic number.

51984571100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51984571100 is an abundant number, since it is smaller than the sum of its proper divisors (88657343908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51984571100 is a wasteful number, since it uses less digits than its factorization.

51984571100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6751275 (or 6751268 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 41.

The spelling of 51984571100 in words is "fifty-one billion, nine hundred eighty-four million, five hundred seventy-one thousand, one hundred".