418334550493 has 2 divisors, whose sum is σ = 418334550494. Its totient is φ = 418334550492.

The previous prime is 418334550467. The next prime is 418334550521. The reversal of 418334550493 is 394055433814.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209839118724 + 208495431769 = 458082^2 + 456613^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-418334550493 is a prime.

It is a super-2 number, since 2×418334550493² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418334553493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209167275246 + 209167275247.

It is an arithmetic number, because the mean of its divisors is an integer number (209167275247).

Almost surely, 2^418334550493 is an apocalyptic number.

It is an amenable number.

418334550493 is a deficient number, since it is larger than the sum of its proper divisors (1).

418334550493 is an equidigital number, since it uses as much as digits as its factorization.

418334550493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 418334550493 in words is "four hundred eighteen billion, three hundred thirty-four million, five hundred fifty thousand, four hundred ninety-three".