51938679200 has 36 divisors (see below), whose sum is σ = 126795302550. Its totient is φ = 20775471360.

The previous prime is 51938679193. The next prime is 51938679211. The reversal of 51938679200 is 297683915.

It can be written as a sum of positive squares in 3 ways, for example, as 50731255696 + 1207423504 = 225236^2 + 34748^2 .

It is a super-3 number, since 3×51938679200³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32460875 + ... + 32462474.

Almost surely, 2^51938679200 is an apocalyptic number.

51938679200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51938679200 is an abundant number, since it is smaller than the sum of its proper divisors (74856623350).

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

51938679200 is a wasteful number, since it uses less digits than its factorization.

51938679200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64923369 (or 64923356 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 51938679200 in words is "fifty-one billion, nine hundred thirty-eight million, six hundred seventy-nine thousand, two hundred".