51683701850 has 24 divisors (see below), whose sum is σ = 104870930688. Its totient is φ = 18794073200.

The previous prime is 51683701819. The next prime is 51683701919. The reversal of 51683701850 is 5810738615.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46984634 + ... + 46985733.

It is an arithmetic number, because the mean of its divisors is an integer number (4369622112).

Almost surely, 2^51683701850 is an apocalyptic number.

51683701850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51683701850 is an abundant number, since it is smaller than the sum of its proper divisors (53187228838).

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

51683701850 is a wasteful number, since it uses less digits than its factorization.

51683701850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93970390 (or 93970385 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 51683701850 in words is "fifty-one billion, six hundred eighty-three million, seven hundred one thousand, eight hundred fifty".