185448225769 has 9 divisors (see below), whose sum is σ = 186036179133. Its totient is φ = 184862128812.

The previous prime is 185448225719. The next prime is 185448225779. The reversal of 185448225769 is 967522844581.

The square root of 185448225769 is 430637.

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

It is not a de Polignac number, because 185448225769 - 2¹¹ = 185448223721 is a prime.

It is a super-2 number, since 2×185448225769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (185448225709) 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, 214887432 + ... + 214888294.

Almost surely, 2^185448225769 is an apocalyptic number.

185448225769 is the 430637-th square number.

185448225769 is the 215319-th centered octagonal number.

It is an amenable number.

185448225769 is a deficient number, since it is larger than the sum of its proper divisors (587953364).

185448225769 is an frugal number, since it uses more digits than its factorization.

185448225769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724 (or 1362 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 61.

The spelling of 185448225769 in words is "one hundred eighty-five billion, four hundred forty-eight million, two hundred twenty-five thousand, seven hundred sixty-nine".