28489172342399 has 8 divisors (see below), whose sum is σ = 28552874258928. Its totient is φ = 28425476376000.

The previous prime is 28489172342347. The next prime is 28489172342401. The reversal of 28489172342399 is 99324327198482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28489172342399 - 2⁸ = 28489172342143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28489172372399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8169149 + ... + 11122649.

It is an arithmetic number, because the mean of its divisors is an integer number (3569109282366).

Almost surely, 2^{28489172342399} is an apocalyptic number.

28489172342399 is a deficient number, since it is larger than the sum of its proper divisors (63701916529).

28489172342399 is a wasteful number, since it uses less digits than its factorization.

28489172342399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975065.

The product of its digits is 376233984, while the sum is 71.

The spelling of 28489172342399 in words is "twenty-eight trillion, four hundred eighty-nine billion, one hundred seventy-two million, three hundred forty-two thousand, three hundred ninety-nine".