20863428588 has 72 divisors (see below), whose sum is σ = 55586185200. Its totient is φ = 6587957376.

The previous prime is 20863428587. The next prime is 20863428601. The reversal of 20863428588 is 88582436802.

20863428588 is a `hidden beast` number, since 2 + 0 + 8 + 6 + 34 + 28 + 588 = 666.

It is not an unprimeable number, because it can be changed into a prime (20863428581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133198 + ... + 243861.

It is an arithmetic number, because the mean of its divisors is an integer number (772030350).

Almost surely, 2^20863428588 is an apocalyptic number.

It is an amenable number.

20863428588 is an abundant number, since it is smaller than the sum of its proper divisors (34722756612).

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

20863428588 is a wasteful number, since it uses less digits than its factorization.

20863428588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377151 (or 377146 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 54.

The spelling of 20863428588 in words is "twenty billion, eight hundred sixty-three million, four hundred twenty-eight thousand, five hundred eighty-eight".