189318005340 has 96 divisors (see below), whose sum is σ = 531867119616. Its totient is φ = 50315865600.

The previous prime is 189318005281. The next prime is 189318005347. The reversal of 189318005340 is 43500813981.

It is a junction number, because it is equal to n+sod(n) for n = 189318005292 and 189318005301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189318005347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26470765 + ... + 26477915.

It is an arithmetic number, because the mean of its divisors is an integer number (5540282496).

Almost surely, 2^189318005340 is an apocalyptic number.

189318005340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189318005340 is an abundant number, since it is smaller than the sum of its proper divisors (342549114276).

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

189318005340 is a wasteful number, since it uses less digits than its factorization.

189318005340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8579 (or 8577 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 189318005340 in words is "one hundred eighty-nine billion, three hundred eighteen million, five thousand, three hundred forty".