189452020500 has 576 divisors, whose sum is σ = 671433235200. Its totient is φ = 45961344000.

The previous prime is 189452020481. The next prime is 189452020519. The reversal of 189452020500 is 5020254981.

189452020500 is a `hidden beast` number, since 1 + 89 + 4 + 52 + 0 + 20 + 500 = 666.

It is an interprime number because it is at equal distance from previous prime (189452020481) and next prime (189452020519).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 220549071 + ... + 220549929.

It is an arithmetic number, because the mean of its divisors is an integer number (1165682700).

Almost surely, 2^189452020500 is an apocalyptic number.

189452020500 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 189452020500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335716617600).

189452020500 is an abundant number, since it is smaller than the sum of its proper divisors (481981214700).

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

189452020500 is a wasteful number, since it uses less digits than its factorization.

189452020500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 917 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 189452020500 in words is "one hundred eighty-nine billion, four hundred fifty-two million, twenty thousand, five hundred".