189010703268 has 72 divisors (see below), whose sum is σ = 484451178848. Its totient is φ = 62123925888.

The previous prime is 189010703243. The next prime is 189010703279. The reversal of 189010703268 is 862307010981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13414155 + ... + 13428237.

Almost surely, 2^189010703268 is an apocalyptic number.

189010703268 is a gapful number since it is divisible by the number (18) 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 189010703268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242225589424).

189010703268 is an abundant number, since it is smaller than the sum of its proper divisors (295440475580).

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

189010703268 is a wasteful number, since it uses less digits than its factorization.

189010703268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19273 (or 19268 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 189010703268 in words is "one hundred eighty-nine billion, ten million, seven hundred three thousand, two hundred sixty-eight".