1868210850 has 48 divisors (see below), whose sum is σ = 5054364000. Its totient is φ = 452899200.

The previous prime is 1868210831. The next prime is 1868210873. The reversal of 1868210850 is 580128681.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1868210799 and 1868210808.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564475 + ... + 567774.

It is an arithmetic number, because the mean of its divisors is an integer number (105299250).

Almost surely, 2^1868210850 is an apocalyptic number.

1868210850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1868210850 is an abundant number, since it is smaller than the sum of its proper divisors (3186153150).

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

1868210850 is a wasteful number, since it uses less digits than its factorization.

1868210850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132275 (or 1132270 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 39.

The square root of 1868210850 is about 43222.8047447178. The cubic root of 1868210850 is about 1231.6159275501.

The spelling of 1868210850 in words is "one billion, eight hundred sixty-eight million, two hundred ten thousand, eight hundred fifty".