85042730777 has 8 divisors (see below), whose sum is σ = 86131184640. Its totient is φ = 83954576160.

The previous prime is 85042730737. The next prime is 85042730779. The reversal of 85042730777 is 77703724058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85042730777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85042730779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528077 + ... + 670037.

It is an arithmetic number, because the mean of its divisors is an integer number (10766398080).

Almost surely, 2^85042730777 is an apocalyptic number.

It is an amenable number.

85042730777 is a deficient number, since it is larger than the sum of its proper divisors (1088453863).

85042730777 is a wasteful number, since it uses less digits than its factorization.

85042730777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149623.

The product of its (nonzero) digits is 2304960, while the sum is 50.

The spelling of 85042730777 in words is "eighty-five billion, forty-two million, seven hundred thirty thousand, seven hundred seventy-seven".