189416408412 has 72 divisors (see below), whose sum is σ = 560869384320. Its totient is φ = 49199065440.

The previous prime is 189416408383. The next prime is 189416408429. The reversal of 189416408412 is 214804614981.

It is a congruent number.

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, 14636112 + ... + 14649047.

It is an arithmetic number, because the mean of its divisors is an integer number (7789852560).

Almost surely, 2^189416408412 is an apocalyptic number.

189416408412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189416408412 is an abundant number, since it is smaller than the sum of its proper divisors (371452975908).

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

189416408412 is a wasteful number, since it uses less digits than its factorization.

189416408412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29285191 (or 29285182 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 189416408412 in words is "one hundred eighty-nine billion, four hundred sixteen million, four hundred eight thousand, four hundred twelve".