15872867312 has 20 divisors (see below), whose sum is σ = 30816330456. Its totient is φ = 7920265920.

The previous prime is 15872867267. The next prime is 15872867317. The reversal of 15872867312 is 21376827851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15872867317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002383 + ... + 1018094.

Almost surely, 2^15872867312 is an apocalyptic number.

It is an amenable number.

15872867312 is a deficient number, since it is larger than the sum of its proper divisors (14943463144).

15872867312 is a wasteful number, since it uses less digits than its factorization.

15872867312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020976 (or 2020970 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 50.

The spelling of 15872867312 in words is "fifteen billion, eight hundred seventy-two million, eight hundred sixty-seven thousand, three hundred twelve".