40009087388947 has 2 divisors, whose sum is σ = 40009087388948. Its totient is φ = 40009087388946.

The previous prime is 40009087388923. The next prime is 40009087388987. The reversal of 40009087388947 is 74988378090004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40009087388947 - 2⁷ = 40009087388819 is a prime.

It is not a weakly prime, because it can be changed into another prime (40009087388917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20004543694473 + 20004543694474.

It is an arithmetic number, because the mean of its divisors is an integer number (20004543694474).

Almost surely, 2^{40009087388947} is an apocalyptic number.

40009087388947 is a deficient number, since it is larger than the sum of its proper divisors (1).

40009087388947 is an equidigital number, since it uses as much as digits as its factorization.

40009087388947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97542144, while the sum is 67.

The spelling of 40009087388947 in words is "forty trillion, nine billion, eighty-seven million, three hundred eighty-eight thousand, nine hundred forty-seven".