20858714460 has 96 divisors (see below), whose sum is σ = 64915905600. Its totient is φ = 5560427520.

The previous prime is 20858714423. The next prime is 20858714483. The reversal of 20858714460 is 6441785802.

20858714460 is a `hidden beast` number, since 2 + 0 + 8 + 587 + 1 + 4 + 4 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 2376480 + ... + 2385240.

It is an arithmetic number, because the mean of its divisors is an integer number (676207350).

Almost surely, 2^20858714460 is an apocalyptic number.

20858714460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20858714460 is an abundant number, since it is smaller than the sum of its proper divisors (44057191140).

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

20858714460 is a wasteful number, since it uses less digits than its factorization.

20858714460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13188 (or 13180 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 20858714460 in words is "twenty billion, eight hundred fifty-eight million, seven hundred fourteen thousand, four hundred sixty".