28571431743 has 24 divisors (see below), whose sum is σ = 42617100240. Its totient is φ = 18433941120.

The previous prime is 28571431729. The next prime is 28571431753. The reversal of 28571431743 is 34713417582.

28571431743 is a `hidden beast` number, since 2 + 8 + 571 + 4 + 3 + 1 + 74 + 3 = 666.

It is not a de Polignac number, because 28571431743 - 2⁴ = 28571431727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28571431753) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 296478 + ... + 380843.

It is an arithmetic number, because the mean of its divisors is an integer number (1775712510).

Almost surely, 2^28571431743 is an apocalyptic number.

28571431743 is a deficient number, since it is larger than the sum of its proper divisors (14045668497).

28571431743 is a wasteful number, since it uses less digits than its factorization.

28571431743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677479 (or 677476 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The spelling of 28571431743 in words is "twenty-eight billion, five hundred seventy-one million, four hundred thirty-one thousand, seven hundred forty-three".