189547466740 has 24 divisors (see below), whose sum is σ = 418999664160. Its totient is φ = 71828513568.

The previous prime is 189547466723. The next prime is 189547466743. The reversal of 189547466740 is 47664745981.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189547466743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249404182 + ... + 249404941.

It is an arithmetic number, because the mean of its divisors is an integer number (17458319340).

Almost surely, 2^189547466740 is an apocalyptic number.

189547466740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189547466740 is an abundant number, since it is smaller than the sum of its proper divisors (229452197420).

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

189547466740 is a wasteful number, since it uses less digits than its factorization.

189547466740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498809151 (or 498809149 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 189547466740 in words is "one hundred eighty-nine billion, five hundred forty-seven million, four hundred sixty-six thousand, seven hundred forty".