4985915856 has 120 divisors (see below), whose sum is σ = 14403408480. Its totient is φ = 1481803776.

The previous prime is 4985915821. The next prime is 4985915867. The reversal of 4985915856 is 6585195894.

It is a super-2 number, since 2×4985915856² = 49718713846224425472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4985915856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254110 + ... + 273026.

It is an arithmetic number, because the mean of its divisors is an integer number (120028404).

Almost surely, 2^4985915856 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 4985915856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7201704240).

4985915856 is an abundant number, since it is smaller than the sum of its proper divisors (9417492624).

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

4985915856 is a wasteful number, since it uses less digits than its factorization.

4985915856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18981 (or 18958 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 60.

The square root of 4985915856 is about 70611.0179504587. The cubic root of 4985915856 is about 1708.3688669434.

The spelling of 4985915856 in words is "four billion, nine hundred eighty-five million, nine hundred fifteen thousand, eight hundred fifty-six".