9142543872 has 600 divisors, whose sum is σ = 34713704520. Its totient is φ = 2368880640.

The previous prime is 9142543867. The next prime is 9142543903. The reversal of 9142543872 is 2783452419.

9142543872 is a `hidden beast` number, since 9 + 14 + 254 + 387 + 2 = 666.

It is a super-2 number, since 2×9142543872² (a number of 21 digits) contains 22 as substring.

Its product of digits (483840) is a multiple of the sum of its prime divisors (432).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 22353204 + ... + 22353612.

Almost surely, 2^9142543872 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 9142543872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17356852260).

9142543872 is an abundant number, since it is smaller than the sum of its proper divisors (25571160648).

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

9142543872 is a wasteful number, since it uses less digits than its factorization.

9142543872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 432 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 9142543872 is about 95616.6506001962. The cubic root of 9142543872 is about 2091.0079516545.

The spelling of 9142543872 in words is "nine billion, one hundred forty-two million, five hundred forty-three thousand, eight hundred seventy-two".