28419444169423 has 8 divisors (see below), whose sum is σ = 29095096986000. Its totient is φ = 27750256930368.

The previous prime is 28419444169397. The next prime is 28419444169463. The reversal of 28419444169423 is 32496144491482.

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 28419444169423 - 2¹⁷ = 28419444038351 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 (28419444169463) 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, 1616385486 + ... + 1616403067.

It is an arithmetic number, because the mean of its divisors is an integer number (3636887123250).

Almost surely, 2^{28419444169423} is an apocalyptic number.

28419444169423 is a deficient number, since it is larger than the sum of its proper divisors (675652816577).

28419444169423 is a wasteful number, since it uses less digits than its factorization.

28419444169423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232788761.

The product of its digits is 47775744, while the sum is 61.

The spelling of 28419444169423 in words is "twenty-eight trillion, four hundred nineteen billion, four hundred forty-four million, one hundred sixty-nine thousand, four hundred twenty-three".