189427509936 has 120 divisors (see below), whose sum is σ = 637755173120. Its totient is φ = 51273606528.

The previous prime is 189427509881. The next prime is 189427509949. The reversal of 189427509936 is 639905724981.

189427509936 is a `hidden beast` number, since 1 + 8 + 94 + 2 + 7 + 509 + 9 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 4926220 + ... + 4964523.

It is a 1-persistent number, because it is pandigital, but 2⋅189427509936 = 378855019872 is not.

Almost surely, 2^189427509936 is an apocalyptic number.

189427509936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189427509936 is an abundant number, since it is smaller than the sum of its proper divisors (448327663184).

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

189427509936 is a wasteful number, since it uses less digits than its factorization.

189427509936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9890783 (or 9890774 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 189427509936 in words is "one hundred eighty-nine billion, four hundred twenty-seven million, five hundred nine thousand, nine hundred thirty-six".