189849600045 has 48 divisors (see below), whose sum is σ = 376128035712. Its totient is φ = 86778000000.

The previous prime is 189849600007. The next prime is 189849600113. The reversal of 189849600045 is 540006948981.

It is not a de Polignac number, because 189849600045 - 2²² = 189845405741 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 189849599964 and 189849600000.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 3006295 + ... + 3068795.

It is an arithmetic number, because the mean of its divisors is an integer number (7836000744).

Almost surely, 2^189849600045 is an apocalyptic number.

189849600045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189849600045 is a deficient number, since it is larger than the sum of its proper divisors (186278435667).

189849600045 is a wasteful number, since it uses less digits than its factorization.

189849600045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72162 (or 72159 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 189849600045 in words is "one hundred eighty-nine billion, eight hundred forty-nine million, six hundred thousand, forty-five".