4242356813 has 4 divisors (see below), whose sum is σ = 4311903708. Its totient is φ = 4172809920.

The previous prime is 4242356809. The next prime is 4242356819. The reversal of 4242356813 is 3186532424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2325843529 + 1916513284 = 48227^2 + 43778^2 .

It is not a de Polignac number, because 4242356813 - 2² = 4242356809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4242356819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34773356 + ... + 34773477.

It is an arithmetic number, because the mean of its divisors is an integer number (1077975927).

Almost surely, 2^4242356813 is an apocalyptic number.

It is an amenable number.

4242356813 is a deficient number, since it is larger than the sum of its proper divisors (69546895).

4242356813 is an equidigital number, since it uses as much as digits as its factorization.

4242356813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69546894.

The product of its digits is 138240, while the sum is 38.

The square root of 4242356813 is about 65133.3771042159. The cubic root of 4242356813 is about 1618.8342999722.

The spelling of 4242356813 in words is "four billion, two hundred forty-two million, three hundred fifty-six thousand, eight hundred thirteen".