189516670904 has 16 divisors (see below), whose sum is σ = 387647736120. Its totient is φ = 86143941280.

The previous prime is 189516670897. The next prime is 189516670909. The reversal of 189516670904 is 409076615981.

It is a self number, because there is not a number n which added to its sum of digits gives 189516670904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189516670909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076799179 + ... + 1076799354.

Almost surely, 2^189516670904 is an apocalyptic number.

It is an amenable number.

189516670904 is an abundant number, since it is smaller than the sum of its proper divisors (198131065216).

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

189516670904 is a wasteful number, since it uses less digits than its factorization.

189516670904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153598550 (or 2153598546 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 189516670904 in words is "one hundred eighty-nine billion, five hundred sixteen million, six hundred seventy thousand, nine hundred four".