21886269480 has 384 divisors, whose sum is σ = 76810032000. Its totient is φ = 5388042240.

The previous prime is 21886269479. The next prime is 21886269529. The reversal of 21886269480 is 8496268812.

21886269480 is a `hidden beast` number, since 2 + 1 + 8 + 8 + 626 + 9 + 4 + 8 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 77886940 + ... + 77887220.

It is an arithmetic number, because the mean of its divisors is an integer number (200026125).

Almost surely, 2^21886269480 is an apocalyptic number.

21886269480 is a gapful number since it is divisible by the number (20) 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 21886269480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38405016000).

21886269480 is an abundant number, since it is smaller than the sum of its proper divisors (54923762520).

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

21886269480 is a wasteful number, since it uses less digits than its factorization.

21886269480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 21886269480 in words is "twenty-one billion, eight hundred eighty-six million, two hundred sixty-nine thousand, four hundred eighty".