85181768 has 16 divisors (see below), whose sum is σ = 182532480. Its totient is φ = 36506448.

The previous prime is 85181749. The next prime is 85181779. The reversal of 85181768 is 86718158.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760496 + ... + 760607.

It is an arithmetic number, because the mean of its divisors is an integer number (11408280).

Almost surely, 2^85181768 is an apocalyptic number.

It is an amenable number.

85181768 is an abundant number, since it is smaller than the sum of its proper divisors (97350712).

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

85181768 is a wasteful number, since it uses less digits than its factorization.

85181768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521116 (or 1521112 counting only the distinct ones).

The product of its digits is 107520, while the sum is 44.

The square root of 85181768 is about 9229.3969467133. The cubic root of 85181768 is about 439.9961569912.

The spelling of 85181768 in words is "eighty-five million, one hundred eighty-one thousand, seven hundred sixty-eight".