20877630312 has 384 divisors, whose sum is σ = 70267046400. Its totient is φ = 5097254400.

The previous prime is 20877630299. The next prime is 20877630313. The reversal of 20877630312 is 21303677802.

It is not an unprimeable number, because it can be changed into a prime (20877630313) 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 95 ways as a sum of consecutive naturals, for example, 42520387 + ... + 42520877.

It is an arithmetic number, because the mean of its divisors is an integer number (182987100).

Almost surely, 2^20877630312 is an apocalyptic number.

20877630312 is a gapful number since it is divisible by the number (22) 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 20877630312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35133523200).

20877630312 is an abundant number, since it is smaller than the sum of its proper divisors (49389416088).

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

20877630312 is a wasteful number, since it uses less digits than its factorization.

20877630312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The spelling of 20877630312 in words is "twenty billion, eight hundred seventy-seven million, six hundred thirty thousand, three hundred twelve".