104453645621 has 12 divisors (see below), whose sum is σ = 117006843780. Its totient is φ = 93093960960.

The previous prime is 104453645603. The next prime is 104453645629. The reversal of 104453645621 is 126546354401.

It can be written as a sum of positive squares in 6 ways, for example, as 3129843025 + 101323802596 = 55945^2 + 318314^2 .

It is not a de Polignac number, because 104453645621 - 2¹⁰ = 104453644597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104453645629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10651460 + ... + 10661261.

It is an arithmetic number, because the mean of its divisors is an integer number (9750570315).

Almost surely, 2^104453645621 is an apocalyptic number.

It is an amenable number.

104453645621 is a deficient number, since it is larger than the sum of its proper divisors (12553198159).

104453645621 is a wasteful number, since it uses less digits than its factorization.

104453645621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21312776 (or 21312763 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 104453645621 in words is "one hundred four billion, four hundred fifty-three million, six hundred forty-five thousand, six hundred twenty-one".