28567939720319 has 12 divisors (see below), whose sum is σ = 29078370958776. Its totient is φ = 28066320963408.

The previous prime is 28567939720277. The next prime is 28567939720381. The reversal of 28567939720319 is 91302793976582.

It is not a de Polignac number, because 28567939720319 - 2⁸ = 28567939720063 is a prime.

It is a super-2 number, since 2×28567939720319² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28567939720519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3070892 + ... + 8158814.

It is an arithmetic number, because the mean of its divisors is an integer number (2423197579898).

Almost surely, 2^{28567939720319} is an apocalyptic number.

28567939720319 is a deficient number, since it is larger than the sum of its proper divisors (510431238457).

28567939720319 is an equidigital number, since it uses as much as digits as its factorization.

28567939720319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5089654 (or 5089595 counting only the distinct ones).

The product of its (nonzero) digits is 308629440, while the sum is 71.

The spelling of 28567939720319 in words is "twenty-eight trillion, five hundred sixty-seven billion, nine hundred thirty-nine million, seven hundred twenty thousand, three hundred nineteen".