85291044534 has 24 divisors (see below), whose sum is σ = 184814095752. Its totient is φ = 28427758560.

The previous prime is 85291044533. The next prime is 85291044547. The reversal of 85291044534 is 43544019258.

85291044534 is a `hidden beast` number, since 8 + 5 + 2 + 9 + 104 + 4 + 534 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 85291044534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85291044533) 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 11 ways as a sum of consecutive naturals, for example, 7252 + ... + 413079.

It is an arithmetic number, because the mean of its divisors is an integer number (7700587323).

Almost surely, 2^85291044534 is an apocalyptic number.

85291044534 is an abundant number, since it is smaller than the sum of its proper divisors (99523051218).

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

85291044534 is a wasteful number, since it uses less digits than its factorization.

85291044534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431612 (or 431609 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 85291044534 in words is "eighty-five billion, two hundred ninety-one million, forty-four thousand, five hundred thirty-four".