84244442667 has 64 divisors (see below), whose sum is σ = 148361601024. Its totient is φ = 41166512640.

The previous prime is 84244442663. The next prime is 84244442687. The reversal of 84244442667 is 76624444248.

It is not a de Polignac number, because 84244442667 - 2² = 84244442663 is a prime.

It is a super-2 number, since 2×84244442667² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (84244442663) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8897778 + ... + 8907240.

It is an arithmetic number, because the mean of its divisors is an integer number (2318150016).

Almost surely, 2^84244442667 is an apocalyptic number.

84244442667 is a deficient number, since it is larger than the sum of its proper divisors (64117158357).

84244442667 is a wasteful number, since it uses less digits than its factorization.

84244442667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11768.

The product of its digits is 8257536, while the sum is 51.

The spelling of 84244442667 in words is "eighty-four billion, two hundred forty-four million, four hundred forty-two thousand, six hundred sixty-seven".