51286974600 has 48 divisors (see below), whose sum is σ = 158989623120. Its totient is φ = 13676526400.

The previous prime is 51286974593. The next prime is 51286974601. The reversal of 51286974600 is 647968215.

It is a self number, because there is not a number n which added to its sum of digits gives 51286974600.

It is not an unprimeable number, because it can be changed into a prime (51286974601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42738546 + ... + 42739745.

It is an arithmetic number, because the mean of its divisors is an integer number (3312283815).

Almost surely, 2^51286974600 is an apocalyptic number.

51286974600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51286974600 is an abundant number, since it is smaller than the sum of its proper divisors (107702648520).

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

51286974600 is a wasteful number, since it uses less digits than its factorization.

51286974600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85478310 (or 85478301 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 51286974600 in words is "fifty-one billion, two hundred eighty-six million, nine hundred seventy-four thousand, six hundred".