104421612409 has 2 divisors, whose sum is σ = 104421612410. Its totient is φ = 104421612408.

The previous prime is 104421612389. The next prime is 104421612419. The reversal of 104421612409 is 904216124401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98797062400 + 5624550009 = 314320^2 + 74997^2 .

It is a cyclic number.

It is not a de Polignac number, because 104421612409 - 2¹¹ = 104421610361 is a prime.

It is not a weakly prime, because it can be changed into another prime (104421612419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52210806204 + 52210806205.

It is an arithmetic number, because the mean of its divisors is an integer number (52210806205).

Almost surely, 2^104421612409 is an apocalyptic number.

It is an amenable number.

104421612409 is a deficient number, since it is larger than the sum of its proper divisors (1).

104421612409 is an equidigital number, since it uses as much as digits as its factorization.

104421612409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 104421612409 in words is "one hundred four billion, four hundred twenty-one million, six hundred twelve thousand, four hundred nine".