28286875741 has 4 divisors (see below), whose sum is σ = 28291025952. Its totient is φ = 28282725532.

The previous prime is 28286875723. The next prime is 28286875763. The reversal of 28286875741 is 14757868282.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14757868282 = 2 ⋅7378934141.

It is a cyclic number.

It is not a de Polignac number, because 28286875741 - 2¹⁵ = 28286842973 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 (28286875541) 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, 2064865 + ... + 2078518.

It is an arithmetic number, because the mean of its divisors is an integer number (7072756488).

Almost surely, 2^28286875741 is an apocalyptic number.

It is an amenable number.

28286875741 is a deficient number, since it is larger than the sum of its proper divisors (4150211).

28286875741 is an equidigital number, since it uses as much as digits as its factorization.

28286875741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150210.

The product of its digits is 12042240, while the sum is 58.

The spelling of 28286875741 in words is "twenty-eight billion, two hundred eighty-six million, eight hundred seventy-five thousand, seven hundred forty-one".