5231994340320 has 480 divisors, whose sum is σ = 21328080925536. Its totient is φ = 1193752166400.

The previous prime is 5231994340273. The next prime is 5231994340327. The reversal of 5231994340320 is 230434991325.

5231994340320 is a `hidden beast` number, since 5 + 2 + 3 + 199 + 434 + 0 + 3 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5231994340327) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1344100 + ... + 3502940.

Almost surely, 2^{5231994340320} 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 5231994340320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10664040462768).

5231994340320 is an abundant number, since it is smaller than the sum of its proper divisors (16096086585216).

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

5231994340320 is a wasteful number, since it uses less digits than its factorization.

5231994340320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158896 (or 2158879 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 5231994340320 in words is "five trillion, two hundred thirty-one billion, nine hundred ninety-four million, three hundred forty thousand, three hundred twenty".