189623190120 has 512 divisors, whose sum is σ = 728639815680. Its totient is φ = 38412840960.

The previous prime is 189623190103. The next prime is 189623190143. The reversal of 189623190120 is 21091326981.

It is a super-2 number, since 2×189623190120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 27198235 + ... + 27205205.

It is an arithmetic number, because the mean of its divisors is an integer number (1423124640).

Almost surely, 2^189623190120 is an apocalyptic number.

189623190120 is a gapful number since it is divisible by the number (10) 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 189623190120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364319907840).

189623190120 is an abundant number, since it is smaller than the sum of its proper divisors (539016625560).

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

189623190120 is a wasteful number, since it uses less digits than its factorization.

189623190120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7105 (or 7101 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The spelling of 189623190120 in words is "one hundred eighty-nine billion, six hundred twenty-three million, one hundred ninety thousand, one hundred twenty".