85008158078 has 4 divisors (see below), whose sum is σ = 127512237120. Its totient is φ = 42504079038.

The previous prime is 85008158023. The next prime is 85008158107. The reversal of 85008158078 is 87085180058.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87085180058 = 2 ⋅43542590029.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21252039518 + ... + 21252039521.

It is an arithmetic number, because the mean of its divisors is an integer number (31878059280).

Almost surely, 2^85008158078 is an apocalyptic number.

85008158078 is a deficient number, since it is larger than the sum of its proper divisors (42504079042).

85008158078 is a wasteful number, since it uses less digits than its factorization.

85008158078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42504079041.

The product of its (nonzero) digits is 716800, while the sum is 50.

The spelling of 85008158078 in words is "eighty-five billion, eight million, one hundred fifty-eight thousand, seventy-eight".