15038861852 has 72 divisors (see below), whose sum is σ = 30959303760. Its totient is φ = 6373140480.

The previous prime is 15038861843. The next prime is 15038861867. The reversal of 15038861852 is 25816883051.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15038861797 and 15038861806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6770102 + ... + 6772322.

It is an arithmetic number, because the mean of its divisors is an integer number (429990330).

Almost surely, 2^15038861852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15038861852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15479651880).

15038861852 is an abundant number, since it is smaller than the sum of its proper divisors (15920441908).

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

15038861852 is a wasteful number, since it uses less digits than its factorization.

15038861852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611 (or 2602 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 47.

The spelling of 15038861852 in words is "fifteen billion, thirty-eight million, eight hundred sixty-one thousand, eight hundred fifty-two".