85345638794 has 16 divisors (see below), whose sum is σ = 145122139680. Its totient is φ = 37317121200.

The previous prime is 85345638793. The next prime is 85345638811. The reversal of 85345638794 is 49783654358.

It is a super-2 number, since 2×85345638794² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85345638793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86381732 + ... + 86382719.

It is an arithmetic number, because the mean of its divisors is an integer number (9070133730).

Almost surely, 2^85345638794 is an apocalyptic number.

85345638794 is a deficient number, since it is larger than the sum of its proper divisors (59776500886).

85345638794 is a wasteful number, since it uses less digits than its factorization.

85345638794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172764485.

The product of its digits is 87091200, while the sum is 62.

The spelling of 85345638794 in words is "eighty-five billion, three hundred forty-five million, six hundred thirty-eight thousand, seven hundred ninety-four".