8515305238452 has 12 divisors (see below), whose sum is σ = 19869045556416. Its totient is φ = 2838435079480.

The previous prime is 8515305238421. The next prime is 8515305238459. The reversal of 8515305238452 is 2548325035158.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 8515305238395 and 8515305238404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8515305238459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354804384924 + ... + 354804384947.

It is an arithmetic number, because the mean of its divisors is an integer number (1655753796368).

Almost surely, 2^{8515305238452} is an apocalyptic number.

It is an amenable number.

8515305238452 is an abundant number, since it is smaller than the sum of its proper divisors (11353740317964).

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

8515305238452 is a wasteful number, since it uses less digits than its factorization.

8515305238452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709608769878 (or 709608769876 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 51.

The spelling of 8515305238452 in words is "eight trillion, five hundred fifteen billion, three hundred five million, two hundred thirty-eight thousand, four hundred fifty-two".