189882736472 has 96 divisors (see below), whose sum is σ = 435074814000. Its totient is φ = 76923624960.

The previous prime is 189882736423. The next prime is 189882736507. The reversal of 189882736472 is 274637288981.

It is a super-2 number, since 2×189882736472² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189882736399 and 189882736408.

It is a congruent number.

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, 211154 + ... + 651422.

Almost surely, 2^189882736472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189882736472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217537407000).

189882736472 is an abundant number, since it is smaller than the sum of its proper divisors (245192077528).

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

189882736472 is a wasteful number, since it uses less digits than its factorization.

189882736472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440341 (or 440324 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 65.

The spelling of 189882736472 in words is "one hundred eighty-nine billion, eight hundred eighty-two million, seven hundred thirty-six thousand, four hundred seventy-two".