85279844969 has 8 divisors (see below), whose sum is σ = 94421104608. Its totient is φ = 76370009760.

The previous prime is 85279844963. The next prime is 85279844983. The reversal of 85279844969 is 96944897258.

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

It is not a de Polignac number, because 85279844969 - 2⁴ = 85279844953 is a prime.

It is a super-2 number, since 2×85279844969² (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 (85279844963) 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, 57855332 + ... + 57856805.

It is an arithmetic number, because the mean of its divisors is an integer number (11802638076).

Almost surely, 2^85279844969 is an apocalyptic number.

It is an amenable number.

85279844969 is a deficient number, since it is larger than the sum of its proper divisors (9141259639).

85279844969 is a wasteful number, since it uses less digits than its factorization.

85279844969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115712215.

The product of its digits is 313528320, while the sum is 71.

The spelling of 85279844969 in words is "eighty-five billion, two hundred seventy-nine million, eight hundred forty-four thousand, nine hundred sixty-nine".