1234355668689 has 16 divisors (see below), whose sum is σ = 1933536153024. Its totient is φ = 690548625600.

The previous prime is 1234355668657. The next prime is 1234355668727. The reversal of 1234355668689 is 9868665534321.

It is not a de Polignac number, because 1234355668689 - 2⁵ = 1234355668657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1234355668639) 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, 1438642542 + ... + 1438643399.

It is an arithmetic number, because the mean of its divisors is an integer number (120846009564).

Almost surely, 2^{1234355668689} is an apocalyptic number.

It is an amenable number.

1234355668689 is a deficient number, since it is larger than the sum of its proper divisors (699180484335).

1234355668689 is a wasteful number, since it uses less digits than its factorization.

1234355668689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877285968.

The product of its digits is 223948800, while the sum is 66.

The spelling of 1234355668689 in words is "one trillion, two hundred thirty-four billion, three hundred fifty-five million, six hundred sixty-eight thousand, six hundred eighty-nine".