1234444455679 has 16 divisors (see below), whose sum is σ = 1341052293312. Its totient is φ = 1133122307328.

The previous prime is 1234444455653. The next prime is 1234444455689. The reversal of 1234444455679 is 9765544444321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1234444455679 - 2¹¹ = 1234444453631 is a prime.

It is a super-3 number, since 3×1234444455679³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 (1234444455649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9873364 + ... + 9997609.

It is an arithmetic number, because the mean of its divisors is an integer number (83815768332).

Almost surely, 2^{1234444455679} is an apocalyptic number.

1234444455679 is a deficient number, since it is larger than the sum of its proper divisors (106607837633).

1234444455679 is a wasteful number, since it uses less digits than its factorization.

1234444455679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19871106.

The product of its digits is 58060800, while the sum is 58.

The spelling of 1234444455679 in words is "one trillion, two hundred thirty-four billion, four hundred forty-four million, four hundred fifty-five thousand, six hundred seventy-nine".