1234456677889 has 32 divisors (see below), whose sum is σ = 1285938758016. Its totient is φ = 1184076840960.

The previous prime is 1234456677877. The next prime is 1234456677893. The reversal of 1234456677889 is 9887766544321.

It is a cyclic number.

It is not a de Polignac number, because 1234456677889 - 2³⁵ = 1200096939521 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1234456677869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 551834679 + ... + 551836915.

It is an arithmetic number, because the mean of its divisors is an integer number (40185586188).

Almost surely, 2^{1234456677889} is an apocalyptic number.

It is an amenable number.

1234456677889 is a deficient number, since it is larger than the sum of its proper divisors (51482080127).

1234456677889 is a wasteful number, since it uses less digits than its factorization.

1234456677889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105.

The product of its digits is 487710720, while the sum is 70.

The spelling of 1234456677889 in words is "one trillion, two hundred thirty-four billion, four hundred fifty-six million, six hundred seventy-seven thousand, eight hundred eighty-nine".