85413436044 has 12 divisors (see below), whose sum is σ = 199298017464. Its totient is φ = 28471145344.

The previous prime is 85413436021. The next prime is 85413436049. The reversal of 85413436044 is 44063431458.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 85413435987 and 85413436005.

It is not an unprimeable number, because it can be changed into a prime (85413436049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3558893157 + ... + 3558893180.

It is an arithmetic number, because the mean of its divisors is an integer number (16608168122).

Almost surely, 2^85413436044 is an apocalyptic number.

It is an amenable number.

85413436044 is an abundant number, since it is smaller than the sum of its proper divisors (113884581420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85413436044 is a wasteful number, since it uses less digits than its factorization.

85413436044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7117786344 (or 7117786342 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 85413436044 in words is "eighty-five billion, four hundred thirteen million, four hundred thirty-six thousand, forty-four".