243454050419 has 2 divisors, whose sum is σ = 243454050420. Its totient is φ = 243454050418.

The previous prime is 243454050373. The next prime is 243454050461. The reversal of 243454050419 is 914050454342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243454050419 - 2²⁸ = 243185614963 is a prime.

It is a super-2 number, since 2×243454050419² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (243454050319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121727025209 + 121727025210.

It is an arithmetic number, because the mean of its divisors is an integer number (121727025210).

Almost surely, 2^243454050419 is an apocalyptic number.

243454050419 is a deficient number, since it is larger than the sum of its proper divisors (1).

243454050419 is an equidigital number, since it uses as much as digits as its factorization.

243454050419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 243454050419 in words is "two hundred forty-three billion, four hundred fifty-four million, fifty thousand, four hundred nineteen".