4950640128 has 120 divisors (see below), whose sum is σ = 15342323832. Its totient is φ = 1414447104.

The previous prime is 4950640111. The next prime is 4950640183. The reversal of 4950640128 is 8210460594.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 42376 + ... + 108152.

Almost surely, 2^4950640128 is an apocalyptic number.

4950640128 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4950640128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7671161916).

4950640128 is an abundant number, since it is smaller than the sum of its proper divisors (10391683704).

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

4950640128 is an equidigital number, since it uses as much as digits as its factorization.

4950640128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65812 (or 65789 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 4950640128 is about 70360.7854418923. The cubic root of 4950640128 is about 1704.3303818386.

The spelling of 4950640128 in words is "four billion, nine hundred fifty million, six hundred forty thousand, one hundred twenty-eight".