186423004849761 has 9 divisors (see below), whose sum is σ = 269277732837841. Its totient is φ = 124281975925812.

The previous prime is 186423004849687. The next prime is 186423004849771. The reversal of 186423004849761 is 167948400324681.

The square root of 186423004849761 is 13653681.

It is a perfect power (a square), and thus also a powerful number.

186423004849761 is a `hidden beast` number, since 1 + 8 + 6 + 4 + 2 + 3 + 0 + 0 + 484 + 97 + 61 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 186423004849761 - 2²⁵ = 186422971295329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (186423004849771) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 38685430 + ... + 43236656.

Almost surely, 2^{186423004849761} is an apocalyptic number.

186423004849761 is the 13653681-st square number.

186423004849761 is the 6826841-st centered octagonal number.

It is an amenable number.

186423004849761 is a deficient number, since it is larger than the sum of its proper divisors (82854727988080).

186423004849761 is an frugal number, since it uses more digits than its factorization.

186423004849761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9102460 (or 4551230 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 186423004849761 in words is "one hundred eighty-six trillion, four hundred twenty-three billion, four million, eight hundred forty-nine thousand, seven hundred sixty-one".