84595867049 has 4 divisors (see below), whose sum is σ = 84597151236. Its totient is φ = 84594582864.

The previous prime is 84595867043. The next prime is 84595867051. The reversal of 84595867049 is 94076859548.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62821913449 + 21773953600 = 250643^2 + 147560^2 .

It is a cyclic number.

It is not a de Polignac number, because 84595867049 - 2⁸ = 84595866793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84595867043) 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, 537614 + ... + 676919.

It is an arithmetic number, because the mean of its divisors is an integer number (21149287809).

Almost surely, 2^84595867049 is an apocalyptic number.

It is an amenable number.

84595867049 is a deficient number, since it is larger than the sum of its proper divisors (1284187).

84595867049 is a wasteful number, since it uses less digits than its factorization.

84595867049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284186.

The product of its (nonzero) digits is 87091200, while the sum is 65.

The spelling of 84595867049 in words is "eighty-four billion, five hundred ninety-five million, eight hundred sixty-seven thousand, forty-nine".