21876302448 has 1080 divisors, whose sum is σ = 88623588144. Its totient is φ = 5173217280.

The previous prime is 21876302411. The next prime is 21876302467. The reversal of 21876302448 is 84420367812.

It is a happy number.

21876302448 is a `hidden beast` number, since 2 + 1 + 8 + 7 + 630 + 2 + 4 + 4 + 8 = 666.

It is a congruent number.

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 215 ways as a sum of consecutive naturals, for example, 299675340 + ... + 299675412.

Almost surely, 2^21876302448 is an apocalyptic number.

21876302448 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 21876302448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44311794072).

21876302448 is an abundant number, since it is smaller than the sum of its proper divisors (66747285696).

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

21876302448 is a wasteful number, since it uses less digits than its factorization.

21876302448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 21876302448 in words is "twenty-one billion, eight hundred seventy-six million, three hundred two thousand, four hundred forty-eight".