4167585649 has 4 divisors (see below), whose sum is σ = 4412737764. Its totient is φ = 3922433536.

The previous prime is 4167585641. The next prime is 4167585673. The reversal of 4167585649 is 9465857614.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3606843249 + 560742400 = 60057^2 + 23680^2 .

It is a cyclic number.

It is not a de Polignac number, because 4167585649 - 2³ = 4167585641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4167585649.

It is not an unprimeable number, because it can be changed into a prime (4167585641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122576032 + ... + 122576065.

It is an arithmetic number, because the mean of its divisors is an integer number (1103184441).

Almost surely, 2^4167585649 is an apocalyptic number.

It is an amenable number.

4167585649 is a deficient number, since it is larger than the sum of its proper divisors (245152115).

4167585649 is a wasteful number, since it uses less digits than its factorization.

4167585649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245152114.

The product of its digits is 7257600, while the sum is 55.

The square root of 4167585649 is about 64556.8404508771. The cubic root of 4167585649 is about 1609.2672680047.

The spelling of 4167585649 in words is "four billion, one hundred sixty-seven million, five hundred eighty-five thousand, six hundred forty-nine".