5649189887 has 16 divisors (see below), whose sum is σ = 6371135232. Its totient is φ = 4964440320.

The previous prime is 5649189883. The next prime is 5649189929. The reversal of 5649189887 is 7889819465.

It is a cyclic number.

It is not a de Polignac number, because 5649189887 - 2² = 5649189883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5649189881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15683 + ... + 107444.

It is an arithmetic number, because the mean of its divisors is an integer number (398195952).

Almost surely, 2^5649189887 is an apocalyptic number.

5649189887 is a deficient number, since it is larger than the sum of its proper divisors (721945345).

5649189887 is a wasteful number, since it uses less digits than its factorization.

5649189887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123278.

The product of its digits is 34836480, while the sum is 65.

The square root of 5649189887 is about 75161.0929071684. The cubic root of 5649189887 is about 1780.9923649428.

The spelling of 5649189887 in words is "five billion, six hundred forty-nine million, one hundred eighty-nine thousand, eight hundred eighty-seven".