20850448572 has 48 divisors (see below), whose sum is σ = 54535128480. Its totient is φ = 6888639744.

The previous prime is 20850448561. The next prime is 20850448583. The reversal of 20850448572 is 27584405802.

20850448572 is a `hidden beast` number, since 20 + 8 + 50 + 4 + 4 + 8 + 572 = 666.

It is an interprime number because it is at equal distance from previous prime (20850448561) and next prime (20850448583).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842043 + ... + 866450.

It is an arithmetic number, because the mean of its divisors is an integer number (1136148510).

Almost surely, 2^20850448572 is an apocalyptic number.

It is an amenable number.

20850448572 is an abundant number, since it is smaller than the sum of its proper divisors (33684679908).

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

20850448572 is a wasteful number, since it uses less digits than its factorization.

20850448572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708619 (or 1708611 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The spelling of 20850448572 in words is "twenty billion, eight hundred fifty million, four hundred forty-eight thousand, five hundred seventy-two".