28809788601 has 16 divisors (see below), whose sum is σ = 42695812800. Its totient is φ = 17131033920.

The previous prime is 28809788587. The next prime is 28809788603. The reversal of 28809788601 is 10688790882.

It is not a de Polignac number, because 28809788601 - 2⁶ = 28809788537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28809788603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8234326 + ... + 8237823.

It is an arithmetic number, because the mean of its divisors is an integer number (2668488300).

Almost surely, 2^28809788601 is an apocalyptic number.

It is an amenable number.

28809788601 is a deficient number, since it is larger than the sum of its proper divisors (13886024199).

28809788601 is a wasteful number, since it uses less digits than its factorization.

28809788601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16472216.

The product of its (nonzero) digits is 3096576, while the sum is 57.

The spelling of 28809788601 in words is "twenty-eight billion, eight hundred nine million, seven hundred eighty-eight thousand, six hundred one".