189548497530 has 192 divisors, whose sum is σ = 571342786560. Its totient is φ = 42703210368.

The previous prime is 189548497519. The next prime is 189548497549. The reversal of 189548497530 is 35794845981.

189548497530 is a `hidden beast` number, since 1 + 8 + 9 + 5 + 4 + 8 + 4 + 97 + 530 = 666.

It is a super-2 number, since 2×189548497530² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 31999149 + ... + 32005071.

It is an arithmetic number, because the mean of its divisors is an integer number (2975743680).

Almost surely, 2^189548497530 is an apocalyptic number.

189548497530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 189548497530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285671393280).

189548497530 is an abundant number, since it is smaller than the sum of its proper divisors (381794289030).

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

189548497530 is a wasteful number, since it uses less digits than its factorization.

189548497530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6665 (or 6662 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 189548497530 in words is "one hundred eighty-nine billion, five hundred forty-eight million, four hundred ninety-seven thousand, five hundred thirty".