188465773340 has 48 divisors (see below), whose sum is σ = 428052014208. Its totient is φ = 69288681984.

The previous prime is 188465773333. The next prime is 188465773343. The reversal of 188465773340 is 43377564881.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188465773343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1494932 + ... + 1616091.

It is an arithmetic number, because the mean of its divisors is an integer number (8917750296).

Almost surely, 2^188465773340 is an apocalyptic number.

188465773340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188465773340 is an abundant number, since it is smaller than the sum of its proper divisors (239586240868).

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

188465773340 is a wasteful number, since it uses less digits than its factorization.

188465773340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111278 (or 3111276 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 188465773340 in words is "one hundred eighty-eight billion, four hundred sixty-five million, seven hundred seventy-three thousand, three hundred forty".