184694025421 has 2 divisors, whose sum is σ = 184694025422. Its totient is φ = 184694025420.

The previous prime is 184694025403. The next prime is 184694025487. The reversal of 184694025421 is 124520496481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116004954025 + 68689071396 = 340595^2 + 262086^2 .

It is a cyclic number.

It is not a de Polignac number, because 184694025421 - 2¹⁷ = 184693894349 is a prime.

It is a super-2 number, since 2×184694025421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (184694025721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92347012710 + 92347012711.

It is an arithmetic number, because the mean of its divisors is an integer number (92347012711).

Almost surely, 2^184694025421 is an apocalyptic number.

It is an amenable number.

184694025421 is a deficient number, since it is larger than the sum of its proper divisors (1).

184694025421 is an equidigital number, since it uses as much as digits as its factorization.

184694025421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 184694025421 in words is "one hundred eighty-four billion, six hundred ninety-four million, twenty-five thousand, four hundred twenty-one".