183501728930961 has 81 divisors (see below), whose sum is σ = 309743092641801. Its totient is φ = 104380705690128.

The previous prime is 183501728930959. The next prime is 183501728930983. The reversal of 183501728930961 is 169039827105381.

The square root of 183501728930961 is 13546281.

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

183501728930961 is a `hidden beast` number, since 1 + 8 + 3 + 501 + 7 + 2 + 8 + 9 + 30 + 96 + 1 = 666.

It is not a de Polignac number, because 183501728930961 - 2¹ = 183501728930959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (183501728932961) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 67988782990 + ... + 67988785688.

Almost surely, 2^{183501728930961} is an apocalyptic number.

183501728930961 is the 13546281-st square number.

183501728930961 is the 6773141-st centered octagonal number.

It is an amenable number.

183501728930961 is a deficient number, since it is larger than the sum of its proper divisors (126241363710840).

183501728930961 is an frugal number, since it uses more digits than its factorization.

183501728930961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5896 (or 2948 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 183501728930961 in words is "one hundred eighty-three trillion, five hundred one billion, seven hundred twenty-eight million, nine hundred thirty thousand, nine hundred sixty-one".