189505854374 has 8 divisors (see below), whose sum is σ = 289622154960. Its totient is φ = 92965136056.

The previous prime is 189505854359. The next prime is 189505854389. The reversal of 189505854374 is 473458505981.

It is an interprime number because it is at equal distance from previous prime (189505854359) and next prime (189505854389).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893895434 + ... + 893895645.

It is an arithmetic number, because the mean of its divisors is an integer number (36202769370).

Almost surely, 2^189505854374 is an apocalyptic number.

189505854374 is a deficient number, since it is larger than the sum of its proper divisors (100116300586).

189505854374 is a wasteful number, since it uses less digits than its factorization.

189505854374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787791134.

The product of its (nonzero) digits is 24192000, while the sum is 59.

The spelling of 189505854374 in words is "one hundred eighty-nine billion, five hundred five million, eight hundred fifty-four thousand, three hundred seventy-four".