85651267319 has 2 divisors, whose sum is σ = 85651267320. Its totient is φ = 85651267318.

The previous prime is 85651267313. The next prime is 85651267367. The reversal of 85651267319 is 91376215658.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85651267319 - 2¹² = 85651263223 is a prime.

It is a super-2 number, since 2×85651267319² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85651267313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42825633659 + 42825633660.

It is an arithmetic number, because the mean of its divisors is an integer number (42825633660).

Almost surely, 2^85651267319 is an apocalyptic number.

85651267319 is a deficient number, since it is larger than the sum of its proper divisors (1).

85651267319 is an equidigital number, since it uses as much as digits as its factorization.

85651267319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 53.

The spelling of 85651267319 in words is "eighty-five billion, six hundred fifty-one million, two hundred sixty-seven thousand, three hundred nineteen".