85782146438 has 32 divisors (see below), whose sum is σ = 137826489600. Its totient is φ = 39899014144.

The previous prime is 85782146423. The next prime is 85782146501. The reversal of 85782146438 is 83464128758.

It is a congruent number.

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, 12484868 + ... + 12491736.

It is an arithmetic number, because the mean of its divisors is an integer number (4307077800).

Almost surely, 2^85782146438 is an apocalyptic number.

85782146438 is a deficient number, since it is larger than the sum of its proper divisors (52044343162).

85782146438 is a wasteful number, since it uses less digits than its factorization.

85782146438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11104.

The product of its digits is 10321920, while the sum is 56.

The spelling of 85782146438 in words is "eighty-five billion, seven hundred eighty-two million, one hundred forty-six thousand, four hundred thirty-eight".