5649729956 has 12 divisors (see below), whose sum is σ = 10647568092. Its totient is φ = 2607567648.

The previous prime is 5649729947. The next prime is 5649729961. The reversal of 5649729956 is 6599279465.

It can be written as a sum of positive squares in 2 ways, for example, as 219513856 + 5430216100 = 14816^2 + 73690^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54324275 + ... + 54324378.

It is an arithmetic number, because the mean of its divisors is an integer number (887297341).

Almost surely, 2^5649729956 is an apocalyptic number.

It is an amenable number.

5649729956 is a deficient number, since it is larger than the sum of its proper divisors (4997838136).

5649729956 is a wasteful number, since it uses less digits than its factorization.

5649729956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108648670 (or 108648668 counting only the distinct ones).

The product of its digits is 36741600, while the sum is 62.

The square root of 5649729956 is about 75164.6855644325. The cubic root of 5649729956 is about 1781.0491181017.

The spelling of 5649729956 in words is "five billion, six hundred forty-nine million, seven hundred twenty-nine thousand, nine hundred fifty-six".