85405174118 has 16 divisors (see below), whose sum is σ = 139775757840. Its totient is φ = 38814468000.

The previous prime is 85405174117. The next prime is 85405174121. The reversal of 85405174118 is 81147150458.

It is a happy number.

It is a super-2 number, since 2×85405174118² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85405174111) 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, 157733 + ... + 442368.

It is an arithmetic number, because the mean of its divisors is an integer number (8735984865).

Almost surely, 2^85405174118 is an apocalyptic number.

85405174118 is a deficient number, since it is larger than the sum of its proper divisors (54370583722).

85405174118 is a wasteful number, since it uses less digits than its factorization.

85405174118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606583.

The product of its (nonzero) digits is 179200, while the sum is 44.

The spelling of 85405174118 in words is "eighty-five billion, four hundred five million, one hundred seventy-four thousand, one hundred eighteen".