4944937890 has 64 divisors (see below), whose sum is σ = 12205668096. Its totient is φ = 1281215232.

The previous prime is 4944937889. The next prime is 4944937897. The reversal of 4944937890 is 987394494.

It is a self number, because there is not a number n which added to its sum of digits gives 4944937890.

It is not an unprimeable number, because it can be changed into a prime (4944937897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 910824 + ... + 916236.

It is an arithmetic number, because the mean of its divisors is an integer number (190713564).

Almost surely, 2^4944937890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4944937890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6102834048).

4944937890 is an abundant number, since it is smaller than the sum of its proper divisors (7260730206).

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

4944937890 is a wasteful number, since it uses less digits than its factorization.

4944937890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6283.

The product of its (nonzero) digits is 7838208, while the sum is 57.

The square root of 4944937890 is about 70320.2523459636. The cubic root of 4944937890 is about 1703.6757707903.

The spelling of 4944937890 in words is "four billion, nine hundred forty-four million, nine hundred thirty-seven thousand, eight hundred ninety".