40242140027 has 2 divisors, whose sum is σ = 40242140028. Its totient is φ = 40242140026.

The previous prime is 40242140023. The next prime is 40242140039. The reversal of 40242140027 is 72004124204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40242140027 - 2² = 40242140023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40242139978 and 40242140005.

It is not a weakly prime, because it can be changed into another prime (40242140023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20121070013 + 20121070014.

It is an arithmetic number, because the mean of its divisors is an integer number (20121070014).

Almost surely, 2^40242140027 is an apocalyptic number.

40242140027 is a deficient number, since it is larger than the sum of its proper divisors (1).

40242140027 is an equidigital number, since it uses as much as digits as its factorization.

40242140027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 26.

The spelling of 40242140027 in words is "forty billion, two hundred forty-two million, one hundred forty thousand, twenty-seven".