189427440260 has 48 divisors (see below), whose sum is σ = 400758079680. Its totient is φ = 75207350400.

The previous prime is 189427440151. The next prime is 189427440269. The reversal of 189427440260 is 62044724981.

It is not an unprimeable number, because it can be changed into a prime (189427440269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19224335 + ... + 19234185.

It is an arithmetic number, because the mean of its divisors is an integer number (8349126660).

Almost surely, 2^189427440260 is an apocalyptic number.

189427440260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189427440260 is an abundant number, since it is smaller than the sum of its proper divisors (211330639420).

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

189427440260 is a wasteful number, since it uses less digits than its factorization.

189427440260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16916 (or 16914 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 189427440260 in words is "one hundred eighty-nine billion, four hundred twenty-seven million, four hundred forty thousand, two hundred sixty".