1649741067 has 128 divisors (see below), whose sum is σ = 2878848000. Its totient is φ = 926069760.

The previous prime is 1649741011. The next prime is 1649741069. The reversal of 1649741067 is 7601479461.

It is not a de Polignac number, because 1649741067 - 2⁶ = 1649741003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1649741069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 24622968 + ... + 24623034.

It is an arithmetic number, because the mean of its divisors is an integer number (22491000).

Almost surely, 2^1649741067 is an apocalyptic number.

1649741067 is a deficient number, since it is larger than the sum of its proper divisors (1229106933).

1649741067 is a wasteful number, since it uses less digits than its factorization.

1649741067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 1649741067 is about 40617.0046532238. The cubic root of 1649741067 is about 1181.6039346565.

The spelling of 1649741067 in words is "one billion, six hundred forty-nine million, seven hundred forty-one thousand, sixty-seven".