28508623607 has 8 divisors (see below), whose sum is σ = 28687460256. Its totient is φ = 28329884032.

The previous prime is 28508623597. The next prime is 28508623613. The reversal of 28508623607 is 70632680582.

It is a happy number.

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 28508623607 - 2¹² = 28508619511 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 (28508623687) 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, 617843 + ... + 662379.

It is an arithmetic number, because the mean of its divisors is an integer number (3585932532).

Almost surely, 2^28508623607 is an apocalyptic number.

28508623607 is a deficient number, since it is larger than the sum of its proper divisors (178836649).

28508623607 is a wasteful number, since it uses less digits than its factorization.

28508623607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48537.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 28508623607 in words is "twenty-eight billion, five hundred eight million, six hundred twenty-three thousand, six hundred seven".