189633765468 has 48 divisors (see below), whose sum is σ = 507045862400. Its totient is φ = 54035809344.

The previous prime is 189633765463. The next prime is 189633765479. The reversal of 189633765468 is 864567336981.

It is a junction number, because it is equal to n+sod(n) for n = 189633765399 and 189633765408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189633765463) 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, 2994868 + ... + 3057531.

Almost surely, 2^189633765468 is an apocalyptic number.

It is an amenable number.

189633765468 is an abundant number, since it is smaller than the sum of its proper divisors (317412096932).

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

189633765468 is a wasteful number, since it uses less digits than its factorization.

189633765468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052786 (or 6052784 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 66.

The spelling of 189633765468 in words is "one hundred eighty-nine billion, six hundred thirty-three million, seven hundred sixty-five thousand, four hundred sixty-eight".