40273027643 has 2 divisors, whose sum is σ = 40273027644. Its totient is φ = 40273027642.

The previous prime is 40273027633. The next prime is 40273027673. The reversal of 40273027643 is 34672037204.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40273027643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40273027597 and 40273027606.

It is not a weakly prime, because it can be changed into another prime (40273027633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20136513821 + 20136513822.

It is an arithmetic number, because the mean of its divisors is an integer number (20136513822).

Almost surely, 2^40273027643 is an apocalyptic number.

40273027643 is a deficient number, since it is larger than the sum of its proper divisors (1).

40273027643 is an equidigital number, since it uses as much as digits as its factorization.

40273027643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 38.

The spelling of 40273027643 in words is "forty billion, two hundred seventy-three million, twenty-seven thousand, six hundred forty-three".