4985581944 has 256 divisors, whose sum is σ = 15173222400. Its totient is φ = 1335398400.

The previous prime is 4985581921. The next prime is 4985581967. The reversal of 4985581944 is 4491855894.

It is an interprime number because it is at equal distance from previous prime (4985581921) and next prime (4985581967).

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35867427 + ... + 35867565.

It is an arithmetic number, because the mean of its divisors is an integer number (59270400).

Almost surely, 2^4985581944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4985581944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7586611200).

4985581944 is an abundant number, since it is smaller than the sum of its proper divisors (10187640456).

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

4985581944 is a wasteful number, since it uses less digits than its factorization.

4985581944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 350 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 57.

The square root of 4985581944 is about 70608.6534640054. The cubic root of 4985581944 is about 1708.3307290087.

The spelling of 4985581944 in words is "four billion, nine hundred eighty-five million, five hundred eighty-one thousand, nine hundred forty-four".