10021447632 has 160 divisors (see below), whose sum is σ = 31129507584. Its totient is φ = 2717798400.

The previous prime is 10021447627. The next prime is 10021447633. The reversal of 10021447632 is 23674412001.

It is a self number, because there is not a number n which added to its sum of digits gives 10021447632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021447633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 499882 + ... + 519542.

Almost surely, 2^10021447632 is an apocalyptic number.

10021447632 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 10021447632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15564753792).

10021447632 is an abundant number, since it is smaller than the sum of its proper divisors (21108059952).

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

10021447632 is a wasteful number, since it uses less digits than its factorization.

10021447632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19757 (or 19751 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

Adding to 10021447632 its reverse (23674412001), we get a palindrome (33695859633).

The spelling of 10021447632 in words is "ten billion, twenty-one million, four hundred forty-seven thousand, six hundred thirty-two".