5091489616 has 20 divisors (see below), whose sum is σ = 9909004672. Its totient is φ = 2534327136.

The previous prime is 5091489589. The next prime is 5091489617. The reversal of 5091489616 is 6169841905.

It is a self number, because there is not a number n which added to its sum of digits gives 5091489616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5091489617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709926 + ... + 717061.

Almost surely, 2^5091489616 is an apocalyptic number.

It is an amenable number.

5091489616 is a deficient number, since it is larger than the sum of its proper divisors (4817515056).

5091489616 is a wasteful number, since it uses less digits than its factorization.

5091489616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427218 (or 1427212 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 5091489616 is about 71354.6748013051. The cubic root of 5091489616 is about 1720.3426413106.

The spelling of 5091489616 in words is "five billion, ninety-one million, four hundred eighty-nine thousand, six hundred sixteen".