15872872857143 has 4 divisors (see below), whose sum is σ = 15873784218240. Its totient is φ = 15871961496048.

The previous prime is 15872872857133. The next prime is 15872872857181. The reversal of 15872872857143 is 34175827827851.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15872872857143 is a prime.

It is a super-2 number, since 2×15872872857143² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15872872857133) 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, 455654423 + ... + 455689256.

It is an arithmetic number, because the mean of its divisors is an integer number (3968446054560).

Almost surely, 2^{15872872857143} is an apocalyptic number.

15872872857143 is a deficient number, since it is larger than the sum of its proper divisors (911361097).

15872872857143 is an equidigital number, since it uses as much as digits as its factorization.

15872872857143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911361096.

The product of its digits is 210739200, while the sum is 68.

The spelling of 15872872857143 in words is "fifteen trillion, eight hundred seventy-two billion, eight hundred seventy-two million, eight hundred fifty-seven thousand, one hundred forty-three".