15872857952 has 96 divisors (see below), whose sum is σ = 36174600000. Its totient is φ = 6715496448.

The previous prime is 15872857943. The next prime is 15872857961. The reversal of 15872857952 is 25975827851.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (15872857943) and next prime (15872857961).

It is a junction number, because it is equal to n+sod(n) for n = 15872857891 and 15872857900.

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, 5772674 + ... + 5775422.

It is an arithmetic number, because the mean of its divisors is an integer number (376818750).

Almost surely, 2^15872857952 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 15872857952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18087300000).

15872857952 is an abundant number, since it is smaller than the sum of its proper divisors (20301742048).

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

15872857952 is a wasteful number, since it uses less digits than its factorization.

15872857952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088 (or 3080 counting only the distinct ones).

The product of its digits is 14112000, while the sum is 59.

The spelling of 15872857952 in words is "fifteen billion, eight hundred seventy-two million, eight hundred fifty-seven thousand, nine hundred fifty-two".