20587984850 has 96 divisors (see below), whose sum is σ = 40748909760. Its totient is φ = 7717248000.

The previous prime is 20587984841. The next prime is 20587984853. The reversal of 20587984850 is 5848978502.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20587984853) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 62199185 + ... + 62199515.

It is an arithmetic number, because the mean of its divisors is an integer number (424467810).

Almost surely, 2^20587984850 is an apocalyptic number.

20587984850 is a deficient number, since it is larger than the sum of its proper divisors (20160924910).

20587984850 is a wasteful number, since it uses less digits than its factorization.

20587984850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 20587984850 in words is "twenty billion, five hundred eighty-seven million, nine hundred eighty-four thousand, eight hundred fifty".