85871552804 has 12 divisors (see below), whose sum is σ = 159114936204. Its totient is φ = 40410142464.

The previous prime is 85871552801. The next prime is 85871552807. The reversal of 85871552804 is 40825517858.

It is an interprime number because it is at equal distance from previous prime (85871552801) and next prime (85871552807).

It can be written as a sum of positive squares in 2 ways, for example, as 30976000000 + 54895552804 = 176000^2 + 234298^2 .

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (85871552801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631408409 + ... + 631408544.

It is an arithmetic number, because the mean of its divisors is an integer number (13259578017).

Almost surely, 2^85871552804 is an apocalyptic number.

It is an amenable number.

85871552804 is a deficient number, since it is larger than the sum of its proper divisors (73243383400).

85871552804 is a wasteful number, since it uses less digits than its factorization.

85871552804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262816974 (or 1262816972 counting only the distinct ones).

The product of its (nonzero) digits is 3584000, while the sum is 53.

The spelling of 85871552804 in words is "eighty-five billion, eight hundred seventy-one million, five hundred fifty-two thousand, eight hundred four".