184389101983481 has 4 divisors (see below), whose sum is σ = 184407213092964. Its totient is φ = 184370990874000.

The previous prime is 184389101983459. The next prime is 184389101983543.

184389101983481 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 113864713489081 + 70524388494400 = 10670741^2 + 8397880^2 .

It is a cyclic number.

It is not a de Polignac number, because 184389101983481 - 2³⁰ = 184388028241657 is a prime.

It is a super-2 number, since 2×184389101983481² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (184389101980481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9055539470 + ... + 9055559831.

It is an arithmetic number, because the mean of its divisors is an integer number (46101803273241).

Almost surely, 2^{184389101983481} is an apocalyptic number.

It is an amenable number.

184389101983481 is a deficient number, since it is larger than the sum of its proper divisors (18111109483).

184389101983481 is a wasteful number, since it uses less digits than its factorization.

184389101983481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18111109482.

The product of its (nonzero) digits is 47775744, while the sum is 68.

The spelling of 184389101983481 in words is "one hundred eighty-four trillion, three hundred eighty-nine billion, one hundred one million, nine hundred eighty-three thousand, four hundred eighty-one".