28323701279 has 8 divisors (see below), whose sum is σ = 29911254912. Its totient is φ = 26765821720.

The previous prime is 28323701267. The next prime is 28323701291. The reversal of 28323701279 is 97210732382.

It is an interprime number because it is at equal distance from previous prime (28323701267) and next prime (28323701291).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28323701279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28323703279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7416557 + ... + 7420374.

It is an arithmetic number, because the mean of its divisors is an integer number (3738906864).

Almost surely, 2^28323701279 is an apocalyptic number.

28323701279 is a deficient number, since it is larger than the sum of its proper divisors (1587553633).

28323701279 is a wasteful number, since it uses less digits than its factorization.

28323701279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14837037.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 28323701279 in words is "twenty-eight billion, three hundred twenty-three million, seven hundred one thousand, two hundred seventy-nine".