189242464068 has 36 divisors (see below), whose sum is σ = 546700452480. Its totient is φ = 54069275376.

The previous prime is 189242464057. The next prime is 189242464087. The reversal of 189242464068 is 860464242981.

It is a happy number.

189242464068 is a `hidden beast` number, since 1 + 89 + 2 + 42 + 464 + 0 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×189242464068² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 375480828 + ... + 375481331.

It is an arithmetic number, because the mean of its divisors is an integer number (15186123680).

Almost surely, 2^189242464068 is an apocalyptic number.

189242464068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

189242464068 is an abundant number, since it is smaller than the sum of its proper divisors (357457988412).

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

189242464068 is a wasteful number, since it uses less digits than its factorization.

189242464068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750962176 (or 750962171 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 54.

The spelling of 189242464068 in words is "one hundred eighty-nine billion, two hundred forty-two million, four hundred sixty-four thousand, sixty-eight".