85387678267 has 4 divisors (see below), whose sum is σ = 85389425776. Its totient is φ = 85385930760.

The previous prime is 85387678247. The next prime is 85387678291. The reversal of 85387678267 is 76287678358.

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 85387678267 - 2⁷ = 85387678139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85387678247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 798288 + ... + 898909.

It is an arithmetic number, because the mean of its divisors is an integer number (21347356444).

Almost surely, 2^85387678267 is an apocalyptic number.

85387678267 is a deficient number, since it is larger than the sum of its proper divisors (1747509).

85387678267 is a wasteful number, since it uses less digits than its factorization.

85387678267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747508.

The product of its digits is 189665280, while the sum is 67.

Subtracting from 85387678267 its reverse (76287678358), we obtain a palindrome (9099999909).

The spelling of 85387678267 in words is "eighty-five billion, three hundred eighty-seven million, six hundred seventy-eight thousand, two hundred sixty-seven".