85872043408967 has 4 divisors (see below), whose sum is σ = 85872111102960. Its totient is φ = 85871975714976.

The previous prime is 85872043408909. The next prime is 85872043408979. The reversal of 85872043408967 is 76980434027858.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85872043408967 - 2¹⁶ = 85872043343431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85872043408967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85872043408867) 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 3 ways as a sum of consecutive naturals, for example, 31907138 + ... + 34493615.

It is an arithmetic number, because the mean of its divisors is an integer number (21468027775740).

Almost surely, 2^{85872043408967} is an apocalyptic number.

85872043408967 is a deficient number, since it is larger than the sum of its proper divisors (67693993).

85872043408967 is a wasteful number, since it uses less digits than its factorization.

85872043408967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67693992.

The product of its (nonzero) digits is 650280960, while the sum is 71.

The spelling of 85872043408967 in words is "eighty-five trillion, eight hundred seventy-two billion, forty-three million, four hundred eight thousand, nine hundred sixty-seven".