20776923048 has 256 divisors, whose sum is σ = 64390878720. Its totient is φ = 5451743232.

The previous prime is 20776923047. The next prime is 20776923053. The reversal of 20776923048 is 84032967702.

It is a super-2 number, since 2×20776923048² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20776922988 and 20776923006.

It is not an unprimeable number, because it can be changed into a prime (20776923047) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 47983440 + ... + 47983872.

It is an arithmetic number, because the mean of its divisors is an integer number (251526870).

Almost surely, 2^20776923048 is an apocalyptic number.

20776923048 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 20776923048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32195439360).

20776923048 is an abundant number, since it is smaller than the sum of its proper divisors (43613955672).

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

20776923048 is a wasteful number, since it uses less digits than its factorization.

20776923048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 832 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 20776923048 in words is "twenty billion, seven hundred seventy-six million, nine hundred twenty-three thousand, forty-eight".