20875373568 has 528 divisors, whose sum is σ = 75794678400. Its totient is φ = 5643509760.

The previous prime is 20875373537. The next prime is 20875373581. The reversal of 20875373568 is 86537357802.

20875373568 is a `hidden beast` number, since 2 + 0 + 8 + 7 + 5 + 3 + 73 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25739883 + ... + 25740693.

Almost surely, 2^20875373568 is an apocalyptic number.

20875373568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20875373568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37897339200).

20875373568 is an abundant number, since it is smaller than the sum of its proper divisors (54919304832).

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

20875373568 is a wasteful number, since it uses less digits than its factorization.

20875373568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 20875373568 in words is "twenty billion, eight hundred seventy-five million, three hundred seventy-three thousand, five hundred sixty-eight".