189672603450 has 48 divisors (see below), whose sum is σ = 513150611616. Its totient is φ = 45981236800.

The previous prime is 189672603443. The next prime is 189672603467. The reversal of 189672603450 is 54306276981.

It is a junction number, because it is equal to n+sod(n) for n = 189672603393 and 189672603402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57474897 + ... + 57478196.

It is an arithmetic number, because the mean of its divisors is an integer number (10690637742).

It is a 1-persistent number, because it is pandigital, but 2⋅189672603450 = 379345206900 is not.

Almost surely, 2^189672603450 is an apocalyptic number.

189672603450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189672603450 is an abundant number, since it is smaller than the sum of its proper divisors (323478008166).

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

189672603450 is a wasteful number, since it uses less digits than its factorization.

189672603450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114953119 (or 114953114 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 189672603450 in words is "one hundred eighty-nine billion, six hundred seventy-two million, six hundred three thousand, four hundred fifty".