189633765475 has 192 divisors, whose sum is σ = 313982189568. Its totient is φ = 110126016000.

The previous prime is 189633765463. The next prime is 189633765479. The reversal of 189633765475 is 574567336981.

It is a de Polignac number, because none of the positive numbers 2^k-189633765475 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189633765479) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 495127134 + ... + 495127516.

It is an arithmetic number, because the mean of its divisors is an integer number (1635323904).

Almost surely, 2^189633765475 is an apocalyptic number.

189633765475 is a deficient number, since it is larger than the sum of its proper divisors (124348424093).

189633765475 is a wasteful number, since it uses less digits than its factorization.

189633765475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 693 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 64.

The spelling of 189633765475 in words is "one hundred eighty-nine billion, six hundred thirty-three million, seven hundred sixty-five thousand, four hundred seventy-five".