85748826187 has 4 divisors (see below), whose sum is σ = 85749546456. Its totient is φ = 85748105920.

The previous prime is 85748826181. The next prime is 85748826199. The reversal of 85748826187 is 78162884758.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85748826187 is a prime.

It is a super-2 number, since 2×85748826187² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85748826181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134389 + ... + 435382.

It is an arithmetic number, because the mean of its divisors is an integer number (21437386614).

Almost surely, 2^85748826187 is an apocalyptic number.

85748826187 is a deficient number, since it is larger than the sum of its proper divisors (720269).

85748826187 is a wasteful number, since it uses less digits than its factorization.

85748826187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720268.

The product of its digits is 48168960, while the sum is 64.

The spelling of 85748826187 in words is "eighty-five billion, seven hundred forty-eight million, eight hundred twenty-six thousand, one hundred eighty-seven".