28530835423 has 8 divisors (see below), whose sum is σ = 30082608000. Its totient is φ = 26984077848.

The previous prime is 28530835409. The next prime is 28530835427. The reversal of 28530835423 is 32453803582.

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 28530835423 - 2⁵ = 28530835391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28530835423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28530835427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242061 + ... + 1264822.

It is an arithmetic number, because the mean of its divisors is an integer number (3760326000).

Almost surely, 2^28530835423 is an apocalyptic number.

28530835423 is a deficient number, since it is larger than the sum of its proper divisors (1551772577).

28530835423 is a wasteful number, since it uses less digits than its factorization.

28530835423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507501.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 28530835423 in words is "twenty-eight billion, five hundred thirty million, eight hundred thirty-five thousand, four hundred twenty-three".