28744601744239 has 2 divisors, whose sum is σ = 28744601744240. Its totient is φ = 28744601744238.

The previous prime is 28744601744219. The next prime is 28744601744249. The reversal of 28744601744239 is 93244710644782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28744601744239 - 2⁵ = 28744601744207 is a prime.

It is a super-2 number, since 2×28744601744239² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28744601744219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14372300872119 + 14372300872120.

It is an arithmetic number, because the mean of its divisors is an integer number (14372300872120).

Almost surely, 2^{28744601744239} is an apocalyptic number.

28744601744239 is a deficient number, since it is larger than the sum of its proper divisors (1).

28744601744239 is an equidigital number, since it uses as much as digits as its factorization.

28744601744239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65028096, while the sum is 61.

The spelling of 28744601744239 in words is "twenty-eight trillion, seven hundred forty-four billion, six hundred one million, seven hundred forty-four thousand, two hundred thirty-nine".