189819459532 has 48 divisors (see below), whose sum is σ = 346573624320. Its totient is φ = 90869284800.

The previous prime is 189819459527. The next prime is 189819459547. The reversal of 189819459532 is 235954918981.

189819459532 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4350907 + ... + 4394317.

It is an arithmetic number, because the mean of its divisors is an integer number (7220283840).

Almost surely, 2^189819459532 is an apocalyptic number.

It is an amenable number.

189819459532 is a deficient number, since it is larger than the sum of its proper divisors (156754164788).

189819459532 is a wasteful number, since it uses less digits than its factorization.

189819459532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43822 (or 43820 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 64.

The spelling of 189819459532 in words is "one hundred eighty-nine billion, eight hundred nineteen million, four hundred fifty-nine thousand, five hundred thirty-two".