28096221197 has 8 divisors (see below), whose sum is σ = 30655867872. Its totient is φ = 25537482000.

The previous prime is 28096221163. The next prime is 28096221217. The reversal of 28096221197 is 79112269082.

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 28096221197 - 2³² = 23801253901 is a prime.

It is a super-2 number, since 2×28096221197² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28096221137) 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, 161303 + ... + 286724.

It is an arithmetic number, because the mean of its divisors is an integer number (3831983484).

Almost surely, 2^28096221197 is an apocalyptic number.

It is an amenable number.

28096221197 is a deficient number, since it is larger than the sum of its proper divisors (2559646675).

28096221197 is a wasteful number, since it uses less digits than its factorization.

28096221197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453739.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 28096221197 in words is "twenty-eight billion, ninety-six million, two hundred twenty-one thousand, one hundred ninety-seven".