423784297439759 has 2 divisors, whose sum is σ = 423784297439760. Its totient is φ = 423784297439758.

The previous prime is 423784297439749. The next prime is 423784297439803. The reversal of 423784297439759 is 957934792487324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423784297439759 - 2¹⁶ = 423784297374223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423784297439749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211892148719879 + 211892148719880.

It is an arithmetic number, because the mean of its divisors is an integer number (211892148719880).

Almost surely, 2^{423784297439759} is an apocalyptic number.

423784297439759 is a deficient number, since it is larger than the sum of its proper divisors (1).

423784297439759 is an equidigital number, since it uses as much as digits as its factorization.

423784297439759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23044331520, while the sum is 83.

The spelling of 423784297439759 in words is "four hundred twenty-three trillion, seven hundred eighty-four billion, two hundred ninety-seven million, four hundred thirty-nine thousand, seven hundred fifty-nine".