9456681173940 has 576 divisors, whose sum is σ = 39453891789312. Its totient is φ = 1769626828800.

The previous prime is 9456681173923. The next prime is 9456681173993. The reversal of 9456681173940 is 493711866549.

9456681173940 is a `hidden beast` number, since 9 + 456 + 6 + 8 + 1 + 173 + 9 + 4 + 0 = 666.

9456681173940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6747324 + ... + 8027436.

It is an arithmetic number, because the mean of its divisors is an integer number (68496339912).

Almost surely, 2^{9456681173940} is an apocalyptic number.

9456681173940 is a gapful number since it is divisible by the number (90) 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 9456681173940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19726945894656).

9456681173940 is an abundant number, since it is smaller than the sum of its proper divisors (29997210615372).

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

9456681173940 is a wasteful number, since it uses less digits than its factorization.

9456681173940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280200 (or 1280195 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 9456681173940 in words is "nine trillion, four hundred fifty-six billion, six hundred eighty-one million, one hundred seventy-three thousand, nine hundred forty".