189140011720 has 32 divisors (see below), whose sum is σ = 464252757120. Its totient is φ = 68778185920.

The previous prime is 189140011703. The next prime is 189140011729. The reversal of 189140011720 is 27110041981.

It is not an unprimeable number, because it can be changed into a prime (189140011729) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 214931392 + ... + 214932271.

It is an arithmetic number, because the mean of its divisors is an integer number (14507898660).

Almost surely, 2^189140011720 is an apocalyptic number.

189140011720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189140011720 is an abundant number, since it is smaller than the sum of its proper divisors (275112745400).

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

189140011720 is a wasteful number, since it uses less digits than its factorization.

189140011720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429863685 (or 429863681 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 189140011720 in words is "one hundred eighty-nine billion, one hundred forty million, eleven thousand, seven hundred twenty".