84440465197 has 4 divisors (see below), whose sum is σ = 92116871136. Its totient is φ = 76764059260.

The previous prime is 84440465189. The next prime is 84440465201. The reversal of 84440465197 is 79156404448.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84440465197 - 2³ = 84440465189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84440465107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3838202953 + ... + 3838202974.

It is an arithmetic number, because the mean of its divisors is an integer number (23029217784).

Almost surely, 2^84440465197 is an apocalyptic number.

It is an amenable number.

84440465197 is a deficient number, since it is larger than the sum of its proper divisors (7676405939).

84440465197 is a wasteful number, since it uses less digits than its factorization.

84440465197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7676405938.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 84440465197 in words is "eighty-four billion, four hundred forty million, four hundred sixty-five thousand, one hundred ninety-seven".