85783589440 has 112 divisors (see below), whose sum is σ = 224372545920. Its totient is φ = 31094046720.

The previous prime is 85783589413. The next prime is 85783589443. The reversal of 85783589440 is 4498538758.

It is not an unprimeable number, because it can be changed into a prime (85783589443) 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 15 ways as a sum of consecutive naturals, for example, 166881 + ... + 446560.

Almost surely, 2^85783589440 is an apocalyptic number.

85783589440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85783589440 is an abundant number, since it is smaller than the sum of its proper divisors (138588956480).

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

85783589440 is a wasteful number, since it uses less digits than its factorization.

85783589440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613500 (or 613490 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 61.

The spelling of 85783589440 in words is "eighty-five billion, seven hundred eighty-three million, five hundred eighty-nine thousand, four hundred forty".