88888888444409 has 2 divisors, whose sum is σ = 88888888444410. Its totient is φ = 88888888444408.

The previous prime is 88888888444403. The next prime is 88888888444523. The reversal of 88888888444409 is 90444488888888.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63001683769600 + 25887204674809 = 7937360^2 + 5087947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88888888444409 is a prime.

It is not a weakly prime, because it can be changed into another prime (88888888444403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44444444222204 + 44444444222205.

It is an arithmetic number, because the mean of its divisors is an integer number (44444444222205).

Almost surely, 2^{88888888444409} is an apocalyptic number.

It is an amenable number.

88888888444409 is a deficient number, since it is larger than the sum of its proper divisors (1).

88888888444409 is an equidigital number, since it uses as much as digits as its factorization.

88888888444409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38654705664, while the sum is 89.

The spelling of 88888888444409 in words is "eighty-eight trillion, eight hundred eighty-eight billion, eight hundred eighty-eight million, four hundred forty-four thousand, four hundred nine".