40115287380673 has 2 divisors, whose sum is σ = 40115287380674. Its totient is φ = 40115287380672.

The previous prime is 40115287380551. The next prime is 40115287380713. The reversal of 40115287380673 is 37608378251104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39937243046464 + 178044334209 = 6319592^2 + 421953^2 .

It is a cyclic number.

It is not a de Polignac number, because 40115287380673 - 2³⁷ = 39977848427201 is a prime.

It is not a weakly prime, because it can be changed into another prime (40115287680673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20057643690336 + 20057643690337.

It is an arithmetic number, because the mean of its divisors is an integer number (20057643690337).

Almost surely, 2^{40115287380673} is an apocalyptic number.

It is an amenable number.

40115287380673 is a deficient number, since it is larger than the sum of its proper divisors (1).

40115287380673 is an equidigital number, since it uses as much as digits as its factorization.

40115287380673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 40115287380673 in words is "forty trillion, one hundred fifteen billion, two hundred eighty-seven million, three hundred eighty thousand, six hundred seventy-three".