9521943402144 has 384 divisors, whose sum is σ = 26477745315840. Its totient is φ = 2992133136384.

The previous prime is 9521943402143. The next prime is 9521943402163. The reversal of 9521943402144 is 4412043491259.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 9521943402093 and 9521943402102.

It is not an unprimeable number, because it can be changed into a prime (9521943402143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6403458169 + ... + 6403459655.

It is an arithmetic number, because the mean of its divisors is an integer number (68952461760).

Almost surely, 2^{9521943402144} 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 9521943402144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13238872657920).

9521943402144 is an abundant number, since it is smaller than the sum of its proper divisors (16955801913696).

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

9521943402144 is a wasteful number, since it uses less digits than its factorization.

9521943402144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932 (or 1924 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 9521943402144 in words is "nine trillion, five hundred twenty-one billion, nine hundred forty-three million, four hundred two thousand, one hundred forty-four".