20458682850 has 48 divisors (see below), whose sum is σ = 52943522112. Its totient is φ = 5218445760.

The previous prime is 20458682843. The next prime is 20458682869. The reversal of 20458682850 is 5828685402.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20458682850.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2961577 + ... + 2968476.

It is an arithmetic number, because the mean of its divisors is an integer number (1102990044).

Almost surely, 2^20458682850 is an apocalyptic number.

20458682850 is an abundant number, since it is smaller than the sum of its proper divisors (32484839262).

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

20458682850 is a wasteful number, since it uses less digits than its factorization.

20458682850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930091 (or 5930086 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 48.

The spelling of 20458682850 in words is "twenty billion, four hundred fifty-eight million, six hundred eighty-two thousand, eight hundred fifty".