189023338390 has 8 divisors (see below), whose sum is σ = 340242009120. Its totient is φ = 75609335352.

The previous prime is 189023338381. The next prime is 189023338451. The reversal of 189023338390 is 93833320981.

It is a happy number.

189023338390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×189023338390² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 9451166910 + ... + 9451166929.

It is an arithmetic number, because the mean of its divisors is an integer number (42530251140).

Almost surely, 2^189023338390 is an apocalyptic number.

189023338390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189023338390 is a deficient number, since it is larger than the sum of its proper divisors (151218670730).

189023338390 is a wasteful number, since it uses less digits than its factorization.

189023338390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18902333846.

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 189023338390 in words is "one hundred eighty-nine billion, twenty-three million, three hundred thirty-eight thousand, three hundred ninety".