85765510242 has 12 divisors (see below), whose sum is σ = 185825272230. Its totient is φ = 28588503408.

The previous prime is 85765510211. The next prime is 85765510261. The reversal of 85765510242 is 24201556758.

85765510242 is a `hidden beast` number, since 8 + 5 + 76 + 551 + 0 + 24 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 74845469241 + 10920041001 = 273579^2 + 104499^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2382375267 + ... + 2382375302.

Almost surely, 2^85765510242 is an apocalyptic number.

85765510242 is an abundant number, since it is smaller than the sum of its proper divisors (100059761988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85765510242 is a wasteful number, since it uses less digits than its factorization.

85765510242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4764750577 (or 4764750574 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 85765510242 in words is "eighty-five billion, seven hundred sixty-five million, five hundred ten thousand, two hundred forty-two".