99999994441 has 2 divisors, whose sum is σ = 99999994442. Its totient is φ = 99999994440.

The previous prime is 99999994403. The next prime is 99999994447. The reversal of 99999994441 is 14449999999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99328977225 + 671017216 = 315165^2 + 25904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99999994441 is a prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (99999994447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49999997220 + 49999997221.

It is an arithmetic number, because the mean of its divisors is an integer number (49999997221).

Almost surely, 2^99999994441 is an apocalyptic number.

It is an amenable number.

99999994441 is a deficient number, since it is larger than the sum of its proper divisors (1).

99999994441 is an equidigital number, since it uses as much as digits as its factorization.

99999994441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306110016, while the sum is 76.

The spelling of 99999994441 in words is "ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-four thousand, four hundred forty-one".