85751328767 has 4 divisors (see below), whose sum is σ = 92347584840. Its totient is φ = 79155072696.

The previous prime is 85751328739. The next prime is 85751328769. The reversal of 85751328767 is 76782315758.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76782315758 = 2 ⋅38391157879.

It is a cyclic number.

It is not a de Polignac number, because 85751328767 - 2¹⁰ = 85751327743 is a prime.

It is a super-2 number, since 2×85751328767² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85751328769) 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, 3298128017 + ... + 3298128042.

It is an arithmetic number, because the mean of its divisors is an integer number (23086896210).

Almost surely, 2^85751328767 is an apocalyptic number.

85751328767 is a deficient number, since it is larger than the sum of its proper divisors (6596256073).

85751328767 is a wasteful number, since it uses less digits than its factorization.

85751328767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6596256072.

The product of its digits is 19756800, while the sum is 59.

The spelling of 85751328767 in words is "eighty-five billion, seven hundred fifty-one million, three hundred twenty-eight thousand, seven hundred sixty-seven".