51223146850 has 24 divisors (see below), whose sum is σ = 95281008768. Its totient is φ = 20487978000.

The previous prime is 51223146817. The next prime is 51223146907. The reversal of 51223146850 is 5864132215.

51223146850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1541107 + ... + 1573993.

It is an arithmetic number, because the mean of its divisors is an integer number (3970042032).

Almost surely, 2^51223146850 is an apocalyptic number.

51223146850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51223146850 is a deficient number, since it is larger than the sum of its proper divisors (44057861918).

51223146850 is a wasteful number, since it uses less digits than its factorization.

51223146850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64050 (or 64045 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 51223146850 in words is "fifty-one billion, two hundred twenty-three million, one hundred forty-six thousand, eight hundred fifty".