85268478640643 has 8 divisors (see below), whose sum is σ = 89804265707520. Its totient is φ = 80737488813960.

The previous prime is 85268478640637. The next prime is 85268478640661. The reversal of 85268478640643 is 34604687486258.

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

It is a cyclic number.

It is not a de Polignac number, because 85268478640643 - 2⁴ = 85268478640627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85268478642643) 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, 1199273555 + ... + 1199344652.

It is an arithmetic number, because the mean of its divisors is an integer number (11225533213440).

Almost surely, 2^{85268478640643} is an apocalyptic number.

85268478640643 is a deficient number, since it is larger than the sum of its proper divisors (4535787066877).

85268478640643 is a wasteful number, since it uses less digits than its factorization.

85268478640643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398620097.

The product of its (nonzero) digits is 1486356480, while the sum is 71.

The spelling of 85268478640643 in words is "eighty-five trillion, two hundred sixty-eight billion, four hundred seventy-eight million, six hundred forty thousand, six hundred forty-three".