1234566788889 has 48 divisors (see below), whose sum is σ = 2040935528448. Its totient is φ = 649841549568.

The previous prime is 1234566788879. The next prime is 1234566788993. The reversal of 1234566788889 is 9888876654321.

It is not a de Polignac number, because 1234566788889 - 2⁵ = 1234566788857 is a prime.

It is a super-3 number, since 3×1234566788889³ (a number of 37 digits) contains 333 as substring.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1234566788889.

It is not an unprimeable number, because it can be changed into a prime (1234566788879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1878819 + ... + 2449304.

It is an arithmetic number, because the mean of its divisors is an integer number (42519490176).

Almost surely, 2^{1234566788889} is an apocalyptic number.

It is an amenable number.

1234566788889 is a deficient number, since it is larger than the sum of its proper divisors (806368739559).

1234566788889 is a wasteful number, since it uses less digits than its factorization.

1234566788889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328214 (or 4328197 counting only the distinct ones).

The product of its digits is 1114767360, while the sum is 75.

The spelling of 1234566788889 in words is "one trillion, two hundred thirty-four billion, five hundred sixty-six million, seven hundred eighty-eight thousand, eight hundred eighty-nine".