20882776530 has 96 divisors (see below), whose sum is σ = 62959059072. Its totient is φ = 4339272960.

The previous prime is 20882776517. The next prime is 20882776549. The reversal of 20882776530 is 3567728802.

It is a self number, because there is not a number n which added to its sum of digits gives 20882776530.

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 47 ways as a sum of consecutive naturals, for example, 385507 + ... + 436326.

It is an arithmetic number, because the mean of its divisors is an integer number (655823532).

Almost surely, 2^20882776530 is an apocalyptic number.

20882776530 is an abundant number, since it is smaller than the sum of its proper divisors (42076282542).

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

20882776530 is a wasteful number, since it uses less digits than its factorization.

20882776530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821872 (or 821861 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 20882776530 in words is "twenty billion, eight hundred eighty-two million, seven hundred seventy-six thousand, five hundred thirty".