420200915742767 has 2 divisors, whose sum is σ = 420200915742768. Its totient is φ = 420200915742766.

The previous prime is 420200915742719. The next prime is 420200915742823. The reversal of 420200915742767 is 767247519002024.

It is an a-pointer prime, because the next prime (420200915742823) can be obtained adding 420200915742767 to its sum of digits (56).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420200915742767 - 2¹⁰ = 420200915741743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420200915772767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210100457871383 + 210100457871384.

It is an arithmetic number, because the mean of its divisors is an integer number (210100457871384).

Almost surely, 2^{420200915742767} is an apocalyptic number.

420200915742767 is a deficient number, since it is larger than the sum of its proper divisors (1).

420200915742767 is an equidigital number, since it uses as much as digits as its factorization.

420200915742767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11854080, while the sum is 56.

The spelling of 420200915742767 in words is "four hundred twenty trillion, two hundred billion, nine hundred fifteen million, seven hundred forty-two thousand, seven hundred sixty-seven".