9131399680000 has 1040 divisors, whose sum is σ = 25999740619776. Its totient is φ = 3182100480000.

The previous prime is 9131399679973. The next prime is 9131399680001. The reversal of 9131399680000 is 869931319.

It is a tau number, because it is divible by the number of its divisors (1040).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9131399680001) 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, 54679039917 + ... + 54679040083.

Almost surely, 2^{9131399680000} 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 9131399680000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12999870309888).

9131399680000 is an abundant number, since it is smaller than the sum of its proper divisors (16868340939776).

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

9131399680000 is a wasteful number, since it uses less digits than its factorization.

9131399680000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 49.

The spelling of 9131399680000 in words is "nine trillion, one hundred thirty-one billion, three hundred ninety-nine million, six hundred eighty thousand".