86442222447 has 24 divisors (see below), whose sum is σ = 142729791776. Its totient is φ = 49384645056.

The previous prime is 86442222443. The next prime is 86442222457. The reversal of 86442222447 is 74422224468.

It is not a de Polignac number, because 86442222447 - 2² = 86442222443 is a prime.

It is a super-3 number, since 3×86442222447³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86442222443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140373 + ... + 438849.

Almost surely, 2^86442222447 is an apocalyptic number.

86442222447 is a deficient number, since it is larger than the sum of its proper divisors (56287569329).

86442222447 is a wasteful number, since it uses less digits than its factorization.

86442222447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303087 (or 303084 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 45.

The spelling of 86442222447 in words is "eighty-six billion, four hundred forty-two million, two hundred twenty-two thousand, four hundred forty-seven".