28869591743507 has 4 divisors (see below), whose sum is σ = 29649850979856. Its totient is φ = 28089332507160.

The previous prime is 28869591743497. The next prime is 28869591743537. The reversal of 28869591743507 is 70534719596882.

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 28869591743507 - 2⁴ = 28869591743491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28869591743537) 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, 390129618119 + ... + 390129618192.

It is an arithmetic number, because the mean of its divisors is an integer number (7412462744964).

It is a 1-persistent number, because it is pandigital, but 2⋅28869591743507 = 57739183487014 is not.

Almost surely, 2^{28869591743507} is an apocalyptic number.

28869591743507 is a deficient number, since it is larger than the sum of its proper divisors (780259236349).

28869591743507 is an equidigital number, since it uses as much as digits as its factorization.

28869591743507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780259236348.

The product of its (nonzero) digits is 914457600, while the sum is 74.

The spelling of 28869591743507 in words is "twenty-eight trillion, eight hundred sixty-nine billion, five hundred ninety-one million, seven hundred forty-three thousand, five hundred seven".