188213140090 has 16 divisors (see below), whose sum is σ = 338833355688. Its totient is φ = 75274210816.

The previous prime is 188213140057. The next prime is 188213140103. The reversal of 188213140090 is 90041312881.

188213140090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 57485337121 + 130727802969 = 239761^2 + 361563^2 .

It is a super-2 number, since 2×188213140090² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1308907 + ... + 1445566.

Almost surely, 2^188213140090 is an apocalyptic number.

188213140090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188213140090 is a deficient number, since it is larger than the sum of its proper divisors (150620215598).

188213140090 is a wasteful number, since it uses less digits than its factorization.

188213140090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761313.

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 188213140090 in words is "one hundred eighty-eight billion, two hundred thirteen million, one hundred forty thousand, ninety".