421624707967 has 2 divisors, whose sum is σ = 421624707968. Its totient is φ = 421624707966.

The previous prime is 421624707937. The next prime is 421624708039. The reversal of 421624707967 is 769707426124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421624707967 - 2³¹ = 419477224319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421624707937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210812353983 + 210812353984.

It is an arithmetic number, because the mean of its divisors is an integer number (210812353984).

Almost surely, 2^421624707967 is an apocalyptic number.

421624707967 is a deficient number, since it is larger than the sum of its proper divisors (1).

421624707967 is an equidigital number, since it uses as much as digits as its factorization.

421624707967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7112448, while the sum is 55.

The spelling of 421624707967 in words is "four hundred twenty-one billion, six hundred twenty-four million, seven hundred seven thousand, nine hundred sixty-seven".