494880021288 has 48 divisors (see below), whose sum is σ = 1340400777300. Its totient is φ = 164947610880.

The previous prime is 494880021277. The next prime is 494880021323. The reversal of 494880021288 is 882120088494.

494880021288 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 417783835044 + 77096186244 = 646362^2 + 277662^2 .

It is a super-2 number, since 2×494880021288² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 732748 + ... + 1235588.

Almost surely, 2^494880021288 is an apocalyptic number.

It is an amenable number.

494880021288 is an abundant number, since it is smaller than the sum of its proper divisors (845520756012).

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

494880021288 is a wasteful number, since it uses less digits than its factorization.

494880021288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516522 (or 516515 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 54.

The spelling of 494880021288 in words is "four hundred ninety-four billion, eight hundred eighty million, twenty-one thousand, two hundred eighty-eight".