8634021850 has 12 divisors (see below), whose sum is σ = 16059280734. Its totient is φ = 3453608720.

The previous prime is 8634021793. The next prime is 8634021853. The reversal of 8634021850 is 581204368.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7492460481 + 1141561369 = 86559^2 + 33787^2 .

It is not an unprimeable number, because it can be changed into a prime (8634021853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86340169 + ... + 86340268.

Almost surely, 2^8634021850 is an apocalyptic number.

8634021850 is a deficient number, since it is larger than the sum of its proper divisors (7425258884).

8634021850 is a wasteful number, since it uses less digits than its factorization.

8634021850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172680449 (or 172680444 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 8634021850 is about 92919.4374175823. The cubic root of 8634021850 is about 2051.4977632661.

The spelling of 8634021850 in words is "eight billion, six hundred thirty-four million, twenty-one thousand, eight hundred fifty".