9143497639872 has 896 divisors, whose sum is σ = 29483650252800. Its totient is φ = 2803850173440.

The previous prime is 9143497639799. The next prime is 9143497639873. The reversal of 9143497639872 is 2789367943419.

It is a happy number.

9143497639872 is a `hidden beast` number, since 9 + 1 + 4 + 3 + 497 + 63 + 9 + 8 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 9143497639872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9143497639873) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 23873361793 + ... + 23873362175.

Almost surely, 2^{9143497639872} 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 9143497639872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14741825126400).

9143497639872 is an abundant number, since it is smaller than the sum of its proper divisors (20340152612928).

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

9143497639872 is a wasteful number, since it uses less digits than its factorization.

9143497639872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 645 counting only the distinct ones).

The product of its digits is 493807104, while the sum is 72.

The spelling of 9143497639872 in words is "nine trillion, one hundred forty-three billion, four hundred ninety-seven million, six hundred thirty-nine thousand, eight hundred seventy-two".