349686182281 has 2 divisors, whose sum is σ = 349686182282. Its totient is φ = 349686182280.

The previous prime is 349686182269. The next prime is 349686182297. The reversal of 349686182281 is 182281686943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348266399881 + 1419782400 = 590141^2 + 37680^2 .

It is a cyclic number.

It is not a de Polignac number, because 349686182281 - 2⁵ = 349686182249 is a prime.

It is a super-2 number, since 2×349686182281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (349686182231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174843091140 + 174843091141.

It is an arithmetic number, because the mean of its divisors is an integer number (174843091141).

Almost surely, 2^349686182281 is an apocalyptic number.

It is an amenable number.

349686182281 is a deficient number, since it is larger than the sum of its proper divisors (1).

349686182281 is an equidigital number, since it uses as much as digits as its factorization.

349686182281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7962624, while the sum is 58.

The spelling of 349686182281 in words is "three hundred forty-nine billion, six hundred eighty-six million, one hundred eighty-two thousand, two hundred eighty-one".