3648517994 has 16 divisors (see below), whose sum is σ = 5975967456. Its totient is φ = 1656843600.

The previous prime is 3648517981. The next prime is 3648518011. The reversal of 3648517994 is 4997158463.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54812 + ... + 101495.

It is an arithmetic number, because the mean of its divisors is an integer number (373497966).

Almost surely, 2^3648517994 is an apocalyptic number.

3648517994 is a deficient number, since it is larger than the sum of its proper divisors (2327449462).

3648517994 is a wasteful number, since it uses less digits than its factorization.

3648517994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157381.

The product of its digits is 6531840, while the sum is 56.

The square root of 3648517994 is about 60402.9634537909. The cubic root of 3648517994 is about 1539.4733109225.

The spelling of 3648517994 in words is "three billion, six hundred forty-eight million, five hundred seventeen thousand, nine hundred ninety-four".