188795053440 has 768 divisors, whose sum is σ = 797764032000. Its totient is φ = 40179400704.

The previous prime is 188795053423. The next prime is 188795053483. The reversal of 188795053440 is 44350597881.

188795053440 is a `hidden beast` number, since 1 + 88 + 79 + 5 + 0 + 53 + 440 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 45196632 + ... + 45200808.

It is an arithmetic number, because the mean of its divisors is an integer number (1038755250).

Almost surely, 2^188795053440 is an apocalyptic number.

188795053440 is a gapful number since it is divisible by the number (10) 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 188795053440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398882016000).

188795053440 is an abundant number, since it is smaller than the sum of its proper divisors (608968978560).

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

188795053440 is a wasteful number, since it uses less digits than its factorization.

188795053440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287 (or 4272 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 188795053440 in words is "one hundred eighty-eight billion, seven hundred ninety-five million, fifty-three thousand, four hundred forty".