485249019520 has 128 divisors (see below), whose sum is σ = 1224633297600. Its totient is φ = 183352320000.

The previous prime is 485249019509. The next prime is 485249019523. The reversal of 485249019520 is 25910942584.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×485249019520² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (485249019523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4162020 + ... + 4277020.

Almost surely, 2^485249019520 is an apocalyptic number.

485249019520 is a gapful number since it is divisible by the number (40) 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 485249019520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612316648800).

485249019520 is an abundant number, since it is smaller than the sum of its proper divisors (739384278080).

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

485249019520 is a wasteful number, since it uses less digits than its factorization.

485249019520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115386 (or 115374 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 485249019520 in words is "four hundred eighty-five billion, two hundred forty-nine million, nineteen thousand, five hundred twenty".