28375002097 has 16 divisors (see below), whose sum is σ = 32213280960. Its totient is φ = 24777289152.

The previous prime is 28375002083. The next prime is 28375002151. The reversal of 28375002097 is 79020057382.

It is a cyclic number.

It is not a de Polignac number, because 28375002097 - 2¹⁹ = 28374477809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28375002037) 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, 84603 + ... + 252799.

It is an arithmetic number, because the mean of its divisors is an integer number (2013330060).

Almost surely, 2^28375002097 is an apocalyptic number.

It is an amenable number.

28375002097 is a deficient number, since it is larger than the sum of its proper divisors (3838278863).

28375002097 is a wasteful number, since it uses less digits than its factorization.

28375002097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168912.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 28375002097 in words is "twenty-eight billion, three hundred seventy-five million, two thousand, ninety-seven".