40424044242247 has 2 divisors, whose sum is σ = 40424044242248. Its totient is φ = 40424044242246.

The previous prime is 40424044242199. The next prime is 40424044242353. The reversal of 40424044242247 is 74224244042404.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40424044242247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40424044542247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20212022121123 + 20212022121124.

It is an arithmetic number, because the mean of its divisors is an integer number (20212022121124).

Almost surely, 2^{40424044242247} is an apocalyptic number.

40424044242247 is a deficient number, since it is larger than the sum of its proper divisors (1).

40424044242247 is an equidigital number, since it uses as much as digits as its factorization.

40424044242247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1835008, while the sum is 43.

The spelling of 40424044242247 in words is "forty trillion, four hundred twenty-four billion, forty-four million, two hundred forty-two thousand, two hundred forty-seven".