20852772976 has 80 divisors (see below), whose sum is σ = 47873443840. Its totient is φ = 8610520320.

The previous prime is 20852772961. The next prime is 20852773037. The reversal of 20852772976 is 67927725802.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 781975 + ... + 808201.

It is an arithmetic number, because the mean of its divisors is an integer number (598418048).

Almost surely, 2^20852772976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20852772976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23936721920).

20852772976 is an abundant number, since it is smaller than the sum of its proper divisors (27020670864).

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

20852772976 is a wasteful number, since it uses less digits than its factorization.

20852772976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26502 (or 26496 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 20852772976 in words is "twenty billion, eight hundred fifty-two million, seven hundred seventy-two thousand, nine hundred seventy-six".