85051930187 has 4 divisors (see below), whose sum is σ = 97202205936. Its totient is φ = 72901654440.

The previous prime is 85051930177. The next prime is 85051930193. The reversal of 85051930187 is 78103915058.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85051930187 - 2¹⁸ = 85051668043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85051930177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6075137864 + ... + 6075137877.

It is an arithmetic number, because the mean of its divisors is an integer number (24300551484).

Almost surely, 2^85051930187 is an apocalyptic number.

85051930187 is a deficient number, since it is larger than the sum of its proper divisors (12150275749).

85051930187 is a wasteful number, since it uses less digits than its factorization.

85051930187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12150275748.

The product of its (nonzero) digits is 302400, while the sum is 47.

The spelling of 85051930187 in words is "eighty-five billion, fifty-one million, nine hundred thirty thousand, one hundred eighty-seven".