40415917427 has 2 divisors, whose sum is σ = 40415917428. Its totient is φ = 40415917426.

The previous prime is 40415917417. The next prime is 40415917433. The reversal of 40415917427 is 72471951404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40415917427 - 2⁴ = 40415917411 is a prime.

It is not a weakly prime, because it can be changed into another prime (40415917417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20207958713 + 20207958714.

It is an arithmetic number, because the mean of its divisors is an integer number (20207958714).

Almost surely, 2^40415917427 is an apocalyptic number.

40415917427 is a deficient number, since it is larger than the sum of its proper divisors (1).

40415917427 is an equidigital number, since it uses as much as digits as its factorization.

40415917427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 40415917427 in words is "forty billion, four hundred fifteen million, nine hundred seventeen thousand, four hundred twenty-seven".