104556644989 has 8 divisors (see below), whose sum is σ = 104800553208. Its totient is φ = 104312954880.

The previous prime is 104556644987. The next prime is 104556644999. The reversal of 104556644989 is 989446655401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 98496800964 + 6059844025 = 313842^2 + 77845^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104556644989 - 2¹ = 104556644987 is a prime.

It is a super-2 number, since 2×104556644989² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104556644987) 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 7 ways as a sum of consecutive naturals, for example, 925779 + ... + 1032559.

It is an arithmetic number, because the mean of its divisors is an integer number (13100069151).

Almost surely, 2^104556644989 is an apocalyptic number.

It is an amenable number.

104556644989 is a deficient number, since it is larger than the sum of its proper divisors (243908219).

104556644989 is a wasteful number, since it uses less digits than its factorization.

104556644989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109055.

The product of its (nonzero) digits is 37324800, while the sum is 61.

The spelling of 104556644989 in words is "one hundred four billion, five hundred fifty-six million, six hundred forty-four thousand, nine hundred eighty-nine".