44404400399987 has 2 divisors, whose sum is σ = 44404400399988. Its totient is φ = 44404400399986.

The previous prime is 44404400399969. The next prime is 44404400400029. The reversal of 44404400399987 is 78999300440444.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44404400399987 is a prime.

It is not a weakly prime, because it can be changed into another prime (44404400399087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22202200199993 + 22202200199994.

It is an arithmetic number, because the mean of its divisors is an integer number (22202200199994).

Almost surely, 2^{44404400399987} is an apocalyptic number.

44404400399987 is a deficient number, since it is larger than the sum of its proper divisors (1).

44404400399987 is an equidigital number, since it uses as much as digits as its factorization.

44404400399987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125411328, while the sum is 65.

The spelling of 44404400399987 in words is "forty-four trillion, four hundred four billion, four hundred million, three hundred ninety-nine thousand, nine hundred eighty-seven".