504440986021 has 8 divisors (see below), whose sum is σ = 585954869504. Its totient is φ = 425289823920.

The previous prime is 504440985991. The next prime is 504440986037. The reversal of 504440986021 is 120689044405.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 504440986021 - 2⁹ = 504440985509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504440986061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590679885 + ... + 590680738.

It is an arithmetic number, because the mean of its divisors is an integer number (73244358688).

Almost surely, 2^504440986021 is an apocalyptic number.

It is an amenable number.

504440986021 is a deficient number, since it is larger than the sum of its proper divisors (81513883483).

504440986021 is a wasteful number, since it uses less digits than its factorization.

504440986021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181360691.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 504440986021 in words is "five hundred four billion, four hundred forty million, nine hundred eighty-six thousand, twenty-one".