185428993478341 has 2 divisors, whose sum is σ = 185428993478342. Its totient is φ = 185428993478340.

The previous prime is 185428993478299. The next prime is 185428993478437. The reversal of 185428993478341 is 143874399824581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124360301373025 + 61068692105316 = 11151695^2 + 7814646^2 .

It is a cyclic number.

It is not a de Polignac number, because 185428993478341 - 2²¹ = 185428991381189 is a prime.

It is a super-2 number, since 2×185428993478341² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (185428993478041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92714496739170 + 92714496739171.

It is an arithmetic number, because the mean of its divisors is an integer number (92714496739171).

Almost surely, 2^{185428993478341} is an apocalyptic number.

It is an amenable number.

185428993478341 is a deficient number, since it is larger than the sum of its proper divisors (1).

185428993478341 is an equidigital number, since it uses as much as digits as its factorization.

185428993478341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1672151040, while the sum is 76.

The spelling of 185428993478341 in words is "one hundred eighty-five trillion, four hundred twenty-eight billion, nine hundred ninety-three million, four hundred seventy-eight thousand, three hundred forty-one".