85667398233 has 4 divisors (see below), whose sum is σ = 114223197648. Its totient is φ = 57111598820.

The previous prime is 85667398231. The next prime is 85667398237. The reversal of 85667398233 is 33289376658.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85667398233 - 2¹ = 85667398231 is a prime.

It is a super-2 number, since 2×85667398233² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85667398231) 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, 14277899703 + ... + 14277899708.

It is an arithmetic number, because the mean of its divisors is an integer number (28555799412).

Almost surely, 2^85667398233 is an apocalyptic number.

It is an amenable number.

85667398233 is a deficient number, since it is larger than the sum of its proper divisors (28555799415).

85667398233 is a wasteful number, since it uses less digits than its factorization.

85667398233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28555799414.

The product of its digits is 39191040, while the sum is 60.

The spelling of 85667398233 in words is "eighty-five billion, six hundred sixty-seven million, three hundred ninety-eight thousand, two hundred thirty-three".