189633765463 has 2 divisors, whose sum is σ = 189633765464. Its totient is φ = 189633765462.

The previous prime is 189633765439. The next prime is 189633765479. The reversal of 189633765463 is 364567336981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189633765463 - 2²¹ = 189631668311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189633705463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94816882731 + 94816882732.

It is an arithmetic number, because the mean of its divisors is an integer number (94816882732).

Almost surely, 2^189633765463 is an apocalyptic number.

189633765463 is a deficient number, since it is larger than the sum of its proper divisors (1).

189633765463 is an equidigital number, since it uses as much as digits as its factorization.

189633765463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58786560, while the sum is 61.

The spelling of 189633765463 in words is "one hundred eighty-nine billion, six hundred thirty-three million, seven hundred sixty-five thousand, four hundred sixty-three".