1063868544 has 96 divisors (see below), whose sum is σ = 3104749440. Its totient is φ = 349601280.

The previous prime is 1063868543. The next prime is 1063868557. The reversal of 1063868544 is 4458683601.

1063868544 is a `hidden beast` number, since 1 + 0 + 638 + 6 + 8 + 5 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1063868544² = 2263632557825359872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1063868544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1063868543) 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, 75289 + ... + 88295.

It is an arithmetic number, because the mean of its divisors is an integer number (32341140).

Almost surely, 2^1063868544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1063868544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1552374720).

1063868544 is an abundant number, since it is smaller than the sum of its proper divisors (2040880896).

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

1063868544 is a wasteful number, since it uses less digits than its factorization.

1063868544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13098 (or 13083 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 1063868544 is about 32616.9977772327. The cubic root of 1063868544 is about 1020.8516992451.

The spelling of 1063868544 in words is "one billion, sixty-three million, eight hundred sixty-eight thousand, five hundred forty-four".