189378603936 has 120 divisors (see below), whose sum is σ = 586270903680. Its totient is φ = 59803754112.

The previous prime is 189378603893. The next prime is 189378603949. The reversal of 189378603936 is 639306873981.

189378603936 is a `hidden beast` number, since 18 + 9 + 3 + 7 + 8 + 603 + 9 + 3 + 6 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

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 19 ways as a sum of consecutive naturals, for example, 1873456 + ... + 1971951.

It is an arithmetic number, because the mean of its divisors is an integer number (4885590864).

Almost surely, 2^189378603936 is an apocalyptic number.

189378603936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189378603936 is an abundant number, since it is smaller than the sum of its proper divisors (396892299744).

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

189378603936 is a wasteful number, since it uses less digits than its factorization.

189378603936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845448 (or 3845431 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 189378603936 in words is "one hundred eighty-nine billion, three hundred seventy-eight million, six hundred three thousand, nine hundred thirty-six".