28164230279 has 8 divisors (see below), whose sum is σ = 28353649920. Its totient is φ = 27975439800.

The previous prime is 28164230239. The next prime is 28164230317. The reversal of 28164230279 is 97203246182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28164230279 - 2⁸ = 28164230023 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 (28164230239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67289 + ... + 246690.

It is an arithmetic number, because the mean of its divisors is an integer number (3544206240).

Almost surely, 2^28164230279 is an apocalyptic number.

28164230279 is a deficient number, since it is larger than the sum of its proper divisors (189419641).

28164230279 is a wasteful number, since it uses less digits than its factorization.

28164230279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314581.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 28164230279 in words is "twenty-eight billion, one hundred sixty-four million, two hundred thirty thousand, two hundred seventy-nine".