85479243665 has 16 divisors (see below), whose sum is σ = 107107854336. Its totient is φ = 65365608000.

The previous prime is 85479243643. The next prime is 85479243671. The reversal of 85479243665 is 56634297458.

It is not a de Polignac number, because 85479243665 - 2¹² = 85479239569 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83486 + ... + 421815.

It is an arithmetic number, because the mean of its divisors is an integer number (6694240896).

Almost surely, 2^85479243665 is an apocalyptic number.

It is an amenable number.

85479243665 is a deficient number, since it is larger than the sum of its proper divisors (21628610671).

85479243665 is a wasteful number, since it uses less digits than its factorization.

85479243665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506800.

The product of its digits is 43545600, while the sum is 59.

The spelling of 85479243665 in words is "eighty-five billion, four hundred seventy-nine million, two hundred forty-three thousand, six hundred sixty-five".