9233557720380 has 576 divisors, whose sum is σ = 34691037308928. Its totient is φ = 1940113244160.

The previous prime is 9233557720259. The next prime is 9233557720391. The reversal of 9233557720380 is 830277553329.

9233557720380 is a `hidden beast` number, since 9 + 2 + 3 + 3 + 557 + 7 + 2 + 0 + 3 + 80 = 666.

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, 161028315 + ... + 161085645.

It is an arithmetic number, because the mean of its divisors is an integer number (60227495328).

Almost surely, 2^{9233557720380} is an apocalyptic number.

9233557720380 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 9233557720380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17345518654464).

9233557720380 is an abundant number, since it is smaller than the sum of its proper divisors (25457479588548).

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

9233557720380 is a wasteful number, since it uses less digits than its factorization.

9233557720380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57546 (or 57541 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 54.

The spelling of 9233557720380 in words is "nine trillion, two hundred thirty-three billion, five hundred fifty-seven million, seven hundred twenty thousand, three hundred eighty".