1028289841507 has 4 divisors (see below), whose sum is σ = 1028291960520. Its totient is φ = 1028287722496.

The previous prime is 1028289841463. The next prime is 1028289841531. The reversal of 1028289841507 is 7051489828201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1028289841507 - 2²³ = 1028281452899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028289341507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69219 + ... + 1435747.

It is an arithmetic number, because the mean of its divisors is an integer number (257072990130).

Almost surely, 2^{1028289841507} is an apocalyptic number.

1028289841507 is a deficient number, since it is larger than the sum of its proper divisors (2119013).

1028289841507 is an equidigital number, since it uses as much as digits as its factorization.

1028289841507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119012.

The product of its (nonzero) digits is 2580480, while the sum is 55.

The spelling of 1028289841507 in words is "one trillion, twenty-eight billion, two hundred eighty-nine million, eight hundred forty-one thousand, five hundred seven".