185754475349 has 2 divisors, whose sum is σ = 185754475350. Its totient is φ = 185754475348.

The previous prime is 185754475339. The next prime is 185754475429. The reversal of 185754475349 is 943574457581.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184884520324 + 869955025 = 429982^2 + 29495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-185754475349 is a prime.

It is a super-2 number, since 2×185754475349² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 185754475291 and 185754475300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (185754475339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92877237674 + 92877237675.

It is an arithmetic number, because the mean of its divisors is an integer number (92877237675).

Almost surely, 2^185754475349 is an apocalyptic number.

It is an amenable number.

185754475349 is a deficient number, since it is larger than the sum of its proper divisors (1).

185754475349 is an equidigital number, since it uses as much as digits as its factorization.

185754475349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672000, while the sum is 62.

The spelling of 185754475349 in words is "one hundred eighty-five billion, seven hundred fifty-four million, four hundred seventy-five thousand, three hundred forty-nine".