1234445566679 has 4 divisors (see below), whose sum is σ = 1329402917976. Its totient is φ = 1139488215384.

The previous prime is 1234445566631. The next prime is 1234445566729. The reversal of 1234445566679 is 9766655444321.

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 1234445566679 - 2¹² = 1234445562583 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234445566379) 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, 47478675629 + ... + 47478675654.

It is an arithmetic number, because the mean of its divisors is an integer number (332350729494).

Almost surely, 2^{1234445566679} is an apocalyptic number.

1234445566679 is a deficient number, since it is larger than the sum of its proper divisors (94957351297).

1234445566679 is an equidigital number, since it uses as much as digits as its factorization.

1234445566679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94957351296.

The product of its digits is 130636800, while the sum is 62.

The spelling of 1234445566679 in words is "one trillion, two hundred thirty-four billion, four hundred forty-five million, five hundred sixty-six thousand, six hundred seventy-nine".