13821469632 has 84 divisors (see below), whose sum is σ = 39764467080. Its totient is φ = 4589978112.

The previous prime is 13821469601. The next prime is 13821469639. The reversal of 13821469632 is 23696412831.

13821469632 is a `hidden beast` number, since 1 + 3 + 8 + 2 + 1 + 4 + 6 + 9 + 632 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13821469639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110343 + ... + 199545.

Almost surely, 2^13821469632 is an apocalyptic number.

13821469632 is a gapful number since it is divisible by the number (12) 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 13821469632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19882233540).

13821469632 is an abundant number, since it is smaller than the sum of its proper divisors (25942997448).

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

13821469632 is a wasteful number, since it uses less digits than its factorization.

13821469632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89490 (or 89477 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The spelling of 13821469632 in words is "thirteen billion, eight hundred twenty-one million, four hundred sixty-nine thousand, six hundred thirty-two".