85919350186 has 4 divisors (see below), whose sum is σ = 128879025282. Its totient is φ = 42959675092.

The previous prime is 85919350151. The next prime is 85919350219. The reversal of 85919350186 is 68105391958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68105391958 = 2 ⋅34052695979.

It can be written as a sum of positive squares in only one way, i.e., 62734719961 + 23184630225 = 250469^2 + 152265^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21479837545 + ... + 21479837548.

Almost surely, 2^85919350186 is an apocalyptic number.

85919350186 is a deficient number, since it is larger than the sum of its proper divisors (42959675096).

85919350186 is a wasteful number, since it uses less digits than its factorization.

85919350186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42959675095.

The product of its (nonzero) digits is 2332800, while the sum is 55.

The spelling of 85919350186 in words is "eighty-five billion, nine hundred nineteen million, three hundred fifty thousand, one hundred eighty-six".