28617315743 has 4 divisors (see below), whose sum is σ = 28884767400. Its totient is φ = 28349864088.

The previous prime is 28617315719. The next prime is 28617315757. The reversal of 28617315743 is 34751371682.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28617315743 - 2²⁶ = 28550206879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28617315343) 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, 133725668 + ... + 133725881.

It is an arithmetic number, because the mean of its divisors is an integer number (7221191850).

Almost surely, 2^28617315743 is an apocalyptic number.

28617315743 is a deficient number, since it is larger than the sum of its proper divisors (267451657).

28617315743 is a wasteful number, since it uses less digits than its factorization.

28617315743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267451656.

The product of its digits is 846720, while the sum is 47.

The spelling of 28617315743 in words is "twenty-eight billion, six hundred seventeen million, three hundred fifteen thousand, seven hundred forty-three".