104556644987 has 2 divisors, whose sum is σ = 104556644988. Its totient is φ = 104556644986.

The previous prime is 104556644939. The next prime is 104556644999. The reversal of 104556644987 is 789446655401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104556644987 - 2¹⁰ = 104556643963 is a prime.

It is not a weakly prime, because it can be changed into another prime (104556640987) 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 as a sum of consecutive naturals, namely, 52278322493 + 52278322494.

It is an arithmetic number, because the mean of its divisors is an integer number (52278322494).

Almost surely, 2^104556644987 is an apocalyptic number.

104556644987 is a deficient number, since it is larger than the sum of its proper divisors (1).

104556644987 is an equidigital number, since it uses as much as digits as its factorization.

104556644987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29030400, while the sum is 59.

The spelling of 104556644987 in words is "one hundred four billion, five hundred fifty-six million, six hundred forty-four thousand, nine hundred eighty-seven".