4949664256 has 20 divisors (see below), whose sum is σ = 9889662222. Its totient is φ = 2474831872.

The previous prime is 4949664241. The next prime is 4949664263. The reversal of 4949664256 is 6524669494.

It can be written as a sum of positive squares in only one way, i.e., 4513689856 + 435974400 = 67184^2 + 20880^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4949664197 and 4949664206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4833145 + ... + 4834168.

Almost surely, 2^4949664256 is an apocalyptic number.

It is an amenable number.

4949664256 is a deficient number, since it is larger than the sum of its proper divisors (4939997966).

4949664256 is an frugal number, since it uses more digits than its factorization.

4949664256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9667331 (or 9667315 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 55.

The square root of 4949664256 is about 70353.8503281803. The cubic root of 4949664256 is about 1704.2183884026.

The spelling of 4949664256 in words is "four billion, nine hundred forty-nine million, six hundred sixty-four thousand, two hundred fifty-six".