490001955688 has 48 divisors (see below), whose sum is σ = 1115221862880. Its totient is φ = 200870363232.

The previous prime is 490001955623. The next prime is 490001955691. The reversal of 490001955688 is 886559100094.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27165006 + ... + 27183037.

It is an arithmetic number, because the mean of its divisors is an integer number (23233788810).

Almost surely, 2^490001955688 is an apocalyptic number.

It is an amenable number.

490001955688 is an abundant number, since it is smaller than the sum of its proper divisors (625219907192).

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

490001955688 is a wasteful number, since it uses less digits than its factorization.

490001955688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54348086 (or 54348075 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 55.

The spelling of 490001955688 in words is "four hundred ninety billion, one million, nine hundred fifty-five thousand, six hundred eighty-eight".