5649697992 has 96 divisors (see below), whose sum is σ = 15370679520. Its totient is φ = 1729136640.

The previous prime is 5649697967. The next prime is 5649697993. The reversal of 5649697992 is 2997969465.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5649697993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274443 + ... + 294309.

It is an arithmetic number, because the mean of its divisors is an integer number (160111245).

Almost surely, 2^5649697992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5649697992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7685339760).

5649697992 is an abundant number, since it is smaller than the sum of its proper divisors (9720981528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5649697992 is a wasteful number, since it uses less digits than its factorization.

5649697992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19951 (or 19930 counting only the distinct ones).

The product of its digits is 66134880, while the sum is 66.

The square root of 5649697992 is about 75164.4729376851. The cubic root of 5649697992 is about 1781.0457592650.

The spelling of 5649697992 in words is "five billion, six hundred forty-nine million, six hundred ninety-seven thousand, nine hundred ninety-two".