2042450457239 has 4 divisors (see below), whose sum is σ = 2131252651056. Its totient is φ = 1953648263424.

The previous prime is 2042450457221. The next prime is 2042450457349. The reversal of 2042450457239 is 9327540542402.

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

It is a cyclic number.

It is not a de Polignac number, because 2042450457239 - 2²⁰ = 2042449408663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2042450457193 and 2042450457202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042450459239) 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, 44401096874 + ... + 44401096919.

It is an arithmetic number, because the mean of its divisors is an integer number (532813162764).

Almost surely, 2^{2042450457239} is an apocalyptic number.

2042450457239 is a deficient number, since it is larger than the sum of its proper divisors (88802193817).

2042450457239 is an equidigital number, since it uses as much as digits as its factorization.

2042450457239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88802193816.

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 2042450457239 in words is "two trillion, forty-two billion, four hundred fifty million, four hundred fifty-seven thousand, two hundred thirty-nine".