28744442887303 has 16 divisors (see below), whose sum is σ = 33769929084192. Its totient is φ = 24121043712000.

The previous prime is 28744442887291. The next prime is 28744442887331. The reversal of 28744442887303 is 30378824444782.

It is a cyclic number.

It is not a de Polignac number, because 28744442887303 - 2⁵ = 28744442887271 is a prime.

It is a super-2 number, since 2×28744442887303² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28744442887393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22774743 + ... + 24003703.

It is an arithmetic number, because the mean of its divisors is an integer number (2110620567762).

Almost surely, 2^{28744442887303} is an apocalyptic number.

28744442887303 is a deficient number, since it is larger than the sum of its proper divisors (5025486196889).

28744442887303 is a wasteful number, since it uses less digits than its factorization.

28744442887303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392546.

The product of its (nonzero) digits is 231211008, while the sum is 64.

The spelling of 28744442887303 in words is "twenty-eight trillion, seven hundred forty-four billion, four hundred forty-two million, eight hundred eighty-seven thousand, three hundred three".