44440040399947 has 2 divisors, whose sum is σ = 44440040399948. Its totient is φ = 44440040399946.

The previous prime is 44440040399939. The next prime is 44440040399977. The reversal of 44440040399947 is 74999304004444.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44440040399947 - 2³ = 44440040399939 is a prime.

It is not a weakly prime, because it can be changed into another prime (44440040399977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22220020199973 + 22220020199974.

It is an arithmetic number, because the mean of its divisors is an integer number (22220020199974).

Almost surely, 2^{44440040399947} is an apocalyptic number.

44440040399947 is a deficient number, since it is larger than the sum of its proper divisors (1).

44440040399947 is an equidigital number, since it uses as much as digits as its factorization.

44440040399947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62705664, while the sum is 61.

The spelling of 44440040399947 in words is "forty-four trillion, four hundred forty billion, forty million, three hundred ninety-nine thousand, nine hundred forty-seven".