188090945190 has 24 divisors (see below), whose sum is σ = 489036457728. Its totient is φ = 50157585360.

The previous prime is 188090945179. The next prime is 188090945197. The reversal of 188090945190 is 91549090881.

188090945190 is a `hidden beast` number, since 18 + 8 + 0 + 90 + 9 + 451 + 90 = 666.

It is a super-2 number, since 2×188090945190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188090945197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1044949606 + ... + 1044949785.

It is an arithmetic number, because the mean of its divisors is an integer number (20376519072).

Almost surely, 2^188090945190 is an apocalyptic number.

188090945190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188090945190 is an abundant number, since it is smaller than the sum of its proper divisors (300945512538).

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

188090945190 is a wasteful number, since it uses less digits than its factorization.

188090945190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089899404 (or 2089899401 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 54.

The spelling of 188090945190 in words is "one hundred eighty-eight billion, ninety million, nine hundred forty-five thousand, one hundred ninety".