20858006384 has 40 divisors (see below), whose sum is σ = 42840226800. Its totient is φ = 9803916288.

The previous prime is 20858006359. The next prime is 20858006419. The reversal of 20858006384 is 48360085802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187067 + ... + 276965.

It is an arithmetic number, because the mean of its divisors is an integer number (1071005670).

Almost surely, 2^20858006384 is an apocalyptic number.

It is an amenable number.

20858006384 is an abundant number, since it is smaller than the sum of its proper divisors (21982220416).

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

20858006384 is a wasteful number, since it uses less digits than its factorization.

20858006384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90777 (or 90771 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 20858006384 in words is "twenty billion, eight hundred fifty-eight million, six thousand, three hundred eighty-four".