85091067544 has 16 divisors (see below), whose sum is σ = 182338002000. Its totient is φ = 36467600352.

The previous prime is 85091067539. The next prime is 85091067553. The reversal of 85091067544 is 44576019058.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759741619 + ... + 759741730.

It is an arithmetic number, because the mean of its divisors is an integer number (11396125125).

Almost surely, 2^85091067544 is an apocalyptic number.

It is an amenable number.

85091067544 is an abundant number, since it is smaller than the sum of its proper divisors (97246934456).

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

85091067544 is a wasteful number, since it uses less digits than its factorization.

85091067544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519483362 (or 1519483358 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 85091067544 in words is "eighty-five billion, ninety-one million, sixty-seven thousand, five hundred forty-four".