85440445130 has 16 divisors (see below), whose sum is σ = 154736318304. Its totient is φ = 33966507600.

The previous prime is 85440445093. The next prime is 85440445133. The reversal of 85440445130 is 3154404458.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85440445133) 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, 26207096 + ... + 26210355.

It is an arithmetic number, because the mean of its divisors is an integer number (9671019894).

Almost surely, 2^85440445130 is an apocalyptic number.

85440445130 is a deficient number, since it is larger than the sum of its proper divisors (69295873174).

85440445130 is a wasteful number, since it uses less digits than its factorization.

85440445130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52417621.

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 85440445130 its reverse (3154404458), we get a palindrome (88594849588).

The spelling of 85440445130 in words is "eighty-five billion, four hundred forty million, four hundred forty-five thousand, one hundred thirty".