5404663646 has 8 divisors (see below), whose sum is σ = 8113584864. Its totient is φ = 2700135360.

The previous prime is 5404663631. The next prime is 5404663651. The reversal of 5404663646 is 6463664045.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5404663597 and 5404663606.

It is a congruent number.

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, 1095155 + ... + 1100078.

It is an arithmetic number, because the mean of its divisors is an integer number (1014198108).

Almost surely, 2^5404663646 is an apocalyptic number.

5404663646 is a deficient number, since it is larger than the sum of its proper divisors (2708921218).

5404663646 is a wasteful number, since it uses less digits than its factorization.

5404663646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196466.

The product of its (nonzero) digits is 1244160, while the sum is 44.

The square root of 5404663646 is about 73516.4175269715. The cubic root of 5404663646 is about 1754.9155562544.

The spelling of 5404663646 in words is "five billion, four hundred four million, six hundred sixty-three thousand, six hundred forty-six".