84995859949 has 16 divisors (see below), whose sum is σ = 114120316800. Its totient is φ = 61135882560.

The previous prime is 84995859913. The next prime is 84995859959. The reversal of 84995859949 is 94995859948.

It is a cyclic number.

It is not a de Polignac number, because 84995859949 - 2⁹ = 84995859437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84995859959) 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, 42454474 + ... + 42456475.

It is an arithmetic number, because the mean of its divisors is an integer number (7132519800).

Almost surely, 2^84995859949 is an apocalyptic number.

It is an amenable number.

84995859949 is a deficient number, since it is larger than the sum of its proper divisors (29124456851).

84995859949 is a wasteful number, since it uses less digits than its factorization.

84995859949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84910980.

The product of its digits is 1511654400, while the sum is 79.

Subtracting 84995859949 from its reverse (94995859948), we obtain a palindrome (9999999999).

The spelling of 84995859949 in words is "eighty-four billion, nine hundred ninety-five million, eight hundred fifty-nine thousand, nine hundred forty-nine".