20876841572 has 12 divisors (see below), whose sum is σ = 38122928256. Its totient is φ = 9984576360.

The previous prime is 20876841553. The next prime is 20876841647. The reversal of 20876841572 is 27514867802.

It is a self number, because there is not a number n which added to its sum of digits gives 20876841572.

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 3 ways as a sum of consecutive naturals, for example, 113461004 + ... + 113461187.

It is an arithmetic number, because the mean of its divisors is an integer number (3176910688).

Almost surely, 2^20876841572 is an apocalyptic number.

It is an amenable number.

20876841572 is a deficient number, since it is larger than the sum of its proper divisors (17246086684).

20876841572 is a wasteful number, since it uses less digits than its factorization.

20876841572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226922218 (or 226922216 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 50.

The spelling of 20876841572 in words is "twenty billion, eight hundred seventy-six million, eight hundred forty-one thousand, five hundred seventy-two".