189011788363 has 4 divisors (see below), whose sum is σ = 189991124248. Its totient is φ = 188032452480.

The previous prime is 189011788319. The next prime is 189011788409. The reversal of 189011788363 is 363887110981.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 189011788363 - 2²⁹ = 188474917451 is a prime.

It is a super-2 number, since 2×189011788363² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189011788963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489667653 + ... + 489668038.

It is an arithmetic number, because the mean of its divisors is an integer number (47497781062).

Almost surely, 2^189011788363 is an apocalyptic number.

189011788363 is a deficient number, since it is larger than the sum of its proper divisors (979335885).

189011788363 is an equidigital number, since it uses as much as digits as its factorization.

189011788363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979335884.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 189011788363 in words is "one hundred eighty-nine billion, eleven million, seven hundred eighty-eight thousand, three hundred sixty-three".