85175887947 has 8 divisors (see below), whose sum is σ = 113578484544. Its totient is φ = 56778608328.

The previous prime is 85175887859. The next prime is 85175887957. The reversal of 85175887947 is 74978857158.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85175887947 - 2⁸ = 85175887691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85175887957) 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, 1291713 + ... + 1356050.

It is an arithmetic number, because the mean of its divisors is an integer number (14197310568).

Almost surely, 2^85175887947 is an apocalyptic number.

85175887947 is a deficient number, since it is larger than the sum of its proper divisors (28402596597).

85175887947 is a wasteful number, since it uses less digits than its factorization.

85175887947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658489.

The product of its digits is 158054400, while the sum is 69.

The spelling of 85175887947 in words is "eighty-five billion, one hundred seventy-five million, eight hundred eighty-seven thousand, nine hundred forty-seven".