189300640365 has 24 divisors (see below), whose sum is σ = 328375371168. Its totient is φ = 100882107360.

The previous prime is 189300640357. The next prime is 189300640367. The reversal of 189300640365 is 563046003981.

189300640365 is a `hidden beast` number, since 189 + 3 + 0 + 0 + 6 + 403 + 65 = 666.

It is not a de Polignac number, because 189300640365 - 2³ = 189300640357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 189300640365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189300640367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1571139 + ... + 1687328.

It is an arithmetic number, because the mean of its divisors is an integer number (13682307132).

Almost surely, 2^189300640365 is an apocalyptic number.

189300640365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189300640365 is a deficient number, since it is larger than the sum of its proper divisors (139074730803).

189300640365 is a wasteful number, since it uses less digits than its factorization.

189300640365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259769 (or 3259766 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 189300640365 in words is "one hundred eighty-nine billion, three hundred million, six hundred forty thousand, three hundred sixty-five".