1649148568 has 16 divisors (see below), whose sum is σ = 3198780000. Its totient is φ = 796140576.

The previous prime is 1649148499. The next prime is 1649148619. The reversal of 1649148568 is 8658419461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3553968 + ... + 3554431.

It is an arithmetic number, because the mean of its divisors is an integer number (199923750).

Almost surely, 2^1649148568 is an apocalyptic number.

It is an amenable number.

1649148568 is a deficient number, since it is larger than the sum of its proper divisors (1549631432).

1649148568 is a wasteful number, since it uses less digits than its factorization.

1649148568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7108434 (or 7108430 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 52.

The square root of 1649148568 is about 40609.7102673732. The cubic root of 1649148568 is about 1181.4624613483.

The spelling of 1649148568 in words is "one billion, six hundred forty-nine million, one hundred forty-eight thousand, five hundred sixty-eight".