40026405427 has 2 divisors, whose sum is σ = 40026405428. Its totient is φ = 40026405426.

The previous prime is 40026405421. The next prime is 40026405437. The reversal of 40026405427 is 72450462004.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40026405427 is a prime.

It is a super-2 number, since 2×40026405427² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40026405392 and 40026405401.

It is not a weakly prime, because it can be changed into another prime (40026405421) 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, 20013202713 + 20013202714.

It is an arithmetic number, because the mean of its divisors is an integer number (20013202714).

Almost surely, 2^40026405427 is an apocalyptic number.

40026405427 is a deficient number, since it is larger than the sum of its proper divisors (1).

40026405427 is an equidigital number, since it uses as much as digits as its factorization.

40026405427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 34.

The spelling of 40026405427 in words is "forty billion, twenty-six million, four hundred five thousand, four hundred twenty-seven".