28465452879 has 4 divisors (see below), whose sum is σ = 37953937176. Its totient is φ = 18976968584.

The previous prime is 28465452871. The next prime is 28465452881. The reversal of 28465452879 is 97825456482.

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 28465452879 - 2³ = 28465452871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28465452871) 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, 4744242144 + ... + 4744242149.

It is an arithmetic number, because the mean of its divisors is an integer number (9488484294).

Almost surely, 2^28465452879 is an apocalyptic number.

28465452879 is a deficient number, since it is larger than the sum of its proper divisors (9488484297).

28465452879 is an equidigital number, since it uses as much as digits as its factorization.

28465452879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9488484296.

The product of its digits is 38707200, while the sum is 60.

The spelling of 28465452879 in words is "twenty-eight billion, four hundred sixty-five million, four hundred fifty-two thousand, eight hundred seventy-nine".