13815083242 has 4 divisors (see below), whose sum is σ = 20722624866. Its totient is φ = 6907541620.

The previous prime is 13815083237. The next prime is 13815083263. The reversal of 13815083242 is 24238051831.

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

It can be written as a sum of positive squares in only one way, i.e., 7668680041 + 6146403201 = 87571^2 + 78399^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3453770809 + ... + 3453770812.

Almost surely, 2^13815083242 is an apocalyptic number.

13815083242 is a deficient number, since it is larger than the sum of its proper divisors (6907541624).

13815083242 is an equidigital number, since it uses as much as digits as its factorization.

13815083242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6907541623.

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 13815083242 in words is "thirteen billion, eight hundred fifteen million, eighty-three thousand, two hundred forty-two".