4167161849 has 2 divisors, whose sum is σ = 4167161850. Its totient is φ = 4167161848.

The previous prime is 4167161837. The next prime is 4167161879. The reversal of 4167161849 is 9481617614.

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., 3808741225 + 358420624 = 61715^2 + 18932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4167161849 is a prime.

It is a super-2 number, since 2×4167161849² = 34730475751522197602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4167161809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2083580924 + 2083580925.

It is an arithmetic number, because the mean of its divisors is an integer number (2083580925).

Almost surely, 2^4167161849 is an apocalyptic number.

It is an amenable number.

4167161849 is a deficient number, since it is larger than the sum of its proper divisors (1).

4167161849 is an equidigital number, since it uses as much as digits as its factorization.

4167161849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 47.

The square root of 4167161849 is about 64553.5579886965. The cubic root of 4167161849 is about 1609.2127175891.

The spelling of 4167161849 in words is "four billion, one hundred sixty-seven million, one hundred sixty-one thousand, eight hundred forty-nine".