4242356819 has 2 divisors, whose sum is σ = 4242356820. Its totient is φ = 4242356818.

The previous prime is 4242356809. The next prime is 4242356861. The reversal of 4242356819 is 9186532424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4242356819 - 2¹⁶ = 4242291283 is a prime.

It is a super-2 number, since 2×4242356819² = 35995182759431597522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4242356819.

It is not a weakly prime, because it can be changed into another prime (4242356809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121178409 + 2121178410.

It is an arithmetic number, because the mean of its divisors is an integer number (2121178410).

Almost surely, 2^4242356819 is an apocalyptic number.

4242356819 is a deficient number, since it is larger than the sum of its proper divisors (1).

4242356819 is an equidigital number, since it uses as much as digits as its factorization.

4242356819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 44.

The square root of 4242356819 is about 65133.3771502753. The cubic root of 4242356819 is about 1618.8343007354.

The spelling of 4242356819 in words is "four billion, two hundred forty-two million, three hundred fifty-six thousand, eight hundred nineteen".