5405649617 has 4 divisors (see below), whose sum is σ = 5507643060. Its totient is φ = 5303656176.

The previous prime is 5405649559. The next prime is 5405649637. The reversal of 5405649617 is 7169465045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3055436176 + 2350213441 = 55276^2 + 48479^2 .

It is a cyclic number.

It is not a de Polignac number, because 5405649617 - 2²² = 5401455313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5405649637) 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, 50996642 + ... + 50996747.

It is an arithmetic number, because the mean of its divisors is an integer number (1376910765).

Almost surely, 2^5405649617 is an apocalyptic number.

It is an amenable number.

5405649617 is a deficient number, since it is larger than the sum of its proper divisors (101993443).

5405649617 is a wasteful number, since it uses less digits than its factorization.

5405649617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101993442.

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 5405649617 is about 73523.1230090235. The cubic root of 5405649617 is about 1755.0222659870.

The spelling of 5405649617 in words is "five billion, four hundred five million, six hundred forty-nine thousand, six hundred seventeen".