28097574197 has 12 divisors (see below), whose sum is σ = 35296127328. Its totient is φ = 21894213000.

The previous prime is 28097574173. The next prime is 28097574199. The reversal of 28097574197 is 79147579082.

It is not a de Polignac number, because 28097574197 - 2³² = 23802606901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28097574199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16585679 + ... + 16587372.

It is an arithmetic number, because the mean of its divisors is an integer number (2941343944).

Almost surely, 2^28097574197 is an apocalyptic number.

It is an amenable number.

28097574197 is a deficient number, since it is larger than the sum of its proper divisors (7198553131).

28097574197 is a wasteful number, since it uses less digits than its factorization.

28097574197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33173080 (or 33173069 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 59.

The spelling of 28097574197 in words is "twenty-eight billion, ninety-seven million, five hundred seventy-four thousand, one hundred ninety-seven".