85440583784 has 64 divisors (see below), whose sum is σ = 168280519680. Its totient is φ = 40618368000.

The previous prime is 85440583729. The next prime is 85440583829. The reversal of 85440583784 is 48738504458.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5150864 + ... + 5167424.

It is an arithmetic number, because the mean of its divisors is an integer number (2629383120).

Almost surely, 2^85440583784 is an apocalyptic number.

It is an amenable number.

85440583784 is a deficient number, since it is larger than the sum of its proper divisors (82839935896).

85440583784 is a wasteful number, since it uses less digits than its factorization.

85440583784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16962 (or 16958 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 56.

The spelling of 85440583784 in words is "eighty-five billion, four hundred forty million, five hundred eighty-three thousand, seven hundred eighty-four".