85185200078 has 48 divisors (see below), whose sum is σ = 143481881088. Its totient is φ = 37888593600.

The previous prime is 85185200063. The next prime is 85185200101. The reversal of 85185200078 is 87000258158.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4903688 + ... + 4921028.

It is an arithmetic number, because the mean of its divisors is an integer number (2989205856).

Almost surely, 2^85185200078 is an apocalyptic number.

85185200078 is a deficient number, since it is larger than the sum of its proper divisors (58296681010).

85185200078 is a wasteful number, since it uses less digits than its factorization.

85185200078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17801 (or 17790 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 44.

The spelling of 85185200078 in words is "eighty-five billion, one hundred eighty-five million, two hundred thousand, seventy-eight".