28564203032897 has 16 divisors (see below), whose sum is σ = 33963199168512. Its totient is φ = 23507243519760.

The previous prime is 28564203032887. The next prime is 28564203032957. The reversal of 28564203032897 is 79823030246582.

It is a happy number.

It is not a de Polignac number, because 28564203032897 - 2²⁸ = 28563934597441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28564203032887) 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, 518209733 + ... + 518264850.

It is an arithmetic number, because the mean of its divisors is an integer number (2122699948032).

Almost surely, 2^{28564203032897} is an apocalyptic number.

It is an amenable number.

28564203032897 is a deficient number, since it is larger than the sum of its proper divisors (5398996135615).

28564203032897 is a wasteful number, since it uses less digits than its factorization.

28564203032897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036474748.

The product of its (nonzero) digits is 34836480, while the sum is 59.

The spelling of 28564203032897 in words is "twenty-eight trillion, five hundred sixty-four billion, two hundred three million, thirty-two thousand, eight hundred ninety-seven".