5649660428 has 6 divisors (see below), whose sum is σ = 9886905756. Its totient is φ = 2824830212.

The previous prime is 5649660323. The next prime is 5649660437. The reversal of 5649660428 is 8240669465.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 706207550 + ... + 706207557.

It is an arithmetic number, because the mean of its divisors is an integer number (1647817626).

Almost surely, 2^5649660428 is an apocalyptic number.

It is an amenable number.

5649660428 is a deficient number, since it is larger than the sum of its proper divisors (4237245328).

5649660428 is a wasteful number, since it uses less digits than its factorization.

5649660428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412415111 (or 1412415109 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 50.

The square root of 5649660428 is about 75164.2230585802. The cubic root of 5649660428 is about 1781.0418119537.

The spelling of 5649660428 in words is "five billion, six hundred forty-nine million, six hundred sixty thousand, four hundred twenty-eight".