40200340247 has 2 divisors, whose sum is σ = 40200340248. Its totient is φ = 40200340246.

The previous prime is 40200340207. The next prime is 40200340273. The reversal of 40200340247 is 74204300204.

It is an a-pointer prime, because the next prime (40200340273) can be obtained adding 40200340247 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40200340247 - 2¹² = 40200336151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40200340207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20100170123 + 20100170124.

It is an arithmetic number, because the mean of its divisors is an integer number (20100170124).

Almost surely, 2^40200340247 is an apocalyptic number.

40200340247 is a deficient number, since it is larger than the sum of its proper divisors (1).

40200340247 is an equidigital number, since it uses as much as digits as its factorization.

40200340247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 26.

The spelling of 40200340247 in words is "forty billion, two hundred million, three hundred forty thousand, two hundred forty-seven".