504878161620 has 96 divisors (see below), whose sum is σ = 1671320851200. Its totient is φ = 111421384704.

The previous prime is 504878161577. The next prime is 504878161651. The reversal of 504878161620 is 26161878405.

It is a self number, because there is not a number n which added to its sum of digits gives 504878161620.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20713525 + ... + 20737884.

It is an arithmetic number, because the mean of its divisors is an integer number (17409592200).

Almost surely, 2^504878161620 is an apocalyptic number.

It is an amenable number.

504878161620 is an abundant number, since it is smaller than the sum of its proper divisors (1166442689580).

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

504878161620 is a wasteful number, since it uses less digits than its factorization.

504878161620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41451457 (or 41451455 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 504878161620 in words is "five hundred four billion, eight hundred seventy-eight million, one hundred sixty-one thousand, six hundred twenty".