538244775452880 has 80 divisors (see below), whose sum is σ = 1853954226567360. Its totient is φ = 143531940120192.

The previous prime is 538244775452851. The next prime is 538244775453031. The reversal of 538244775452880 is 88254577442835.

538244775452880 is a `hidden beast` number, since 5 + 3 + 8 + 2 + 4 + 4 + 77 + 545 + 2 + 8 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 538244775452799 and 538244775452808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124593695862 + ... + 124593700181.

It is an arithmetic number, because the mean of its divisors is an integer number (23174427832092).

Almost surely, 2^{538244775452880} is an apocalyptic number.

It is an amenable number.

538244775452880 is an abundant number, since it is smaller than the sum of its proper divisors (1315709451114480).

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

538244775452880 is a wasteful number, since it uses less digits than its factorization.

538244775452880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249187396065 (or 249187396053 counting only the distinct ones).

The product of its (nonzero) digits is 2408448000, while the sum is 72.

The spelling of 538244775452880 in words is "five hundred thirty-eight trillion, two hundred forty-four billion, seven hundred seventy-five million, four hundred fifty-two thousand, eight hundred eighty".