4951649616 has 40 divisors (see below), whose sum is σ = 13137489504. Its totient is φ = 1605939840.

The previous prime is 4951649557. The next prime is 4951649617. The reversal of 4951649616 is 6169461594.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4951649617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1392270 + ... + 1395821.

Almost surely, 2^4951649616 is an apocalyptic number.

It is an amenable number.

4951649616 is an abundant number, since it is smaller than the sum of its proper divisors (8185839888).

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

4951649616 is a wasteful number, since it uses less digits than its factorization.

4951649616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788139 (or 2788133 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 51.

The square root of 4951649616 is about 70367.9587312294. The cubic root of 4951649616 is about 1704.4462176426.

The spelling of 4951649616 in words is "four billion, nine hundred fifty-one million, six hundred forty-nine thousand, six hundred sixteen".