85579974767 has 8 divisors (see below), whose sum is σ = 100449082656. Its totient is φ = 71371716192.

The previous prime is 85579974751. The next prime is 85579974793. The reversal of 85579974767 is 76747997558.

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

It is not a de Polignac number, because 85579974767 - 2⁴ = 85579974751 is a prime.

It is a super-2 number, since 2×85579974767² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85579974694 and 85579974703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85579974367) 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 7 ways as a sum of consecutive naturals, for example, 165212048 + ... + 165212565.

It is an arithmetic number, because the mean of its divisors is an integer number (12556135332).

Almost surely, 2^85579974767 is an apocalyptic number.

85579974767 is a deficient number, since it is larger than the sum of its proper divisors (14869107889).

85579974767 is a wasteful number, since it uses less digits than its factorization.

85579974767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330424657.

The product of its digits is 933508800, while the sum is 74.

The spelling of 85579974767 in words is "eighty-five billion, five hundred seventy-nine million, nine hundred seventy-four thousand, seven hundred sixty-seven".