494021598072 has 16 divisors (see below), whose sum is σ = 1235053995240. Its totient is φ = 164673866016.

The previous prime is 494021598019. The next prime is 494021598089. The reversal of 494021598072 is 270895120494.

It is a super-2 number, since 2×494021598072² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10292116603 + ... + 10292116650.

Almost surely, 2^494021598072 is an apocalyptic number.

It is an amenable number.

494021598072 is an abundant number, since it is smaller than the sum of its proper divisors (741032397168).

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

494021598072 is a wasteful number, since it uses less digits than its factorization.

494021598072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20584233262 (or 20584233258 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 494021598072 in words is "four hundred ninety-four billion, twenty-one million, five hundred ninety-eight thousand, seventy-two".