2810242168442 has 4 divisors (see below), whose sum is σ = 4215363252666. Its totient is φ = 1405121084220.

The previous prime is 2810242168421. The next prime is 2810242168451. The reversal of 2810242168442 is 2448612420182.

It is a happy number.

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., 1937828259481 + 872413908961 = 1392059^2 + 934031^2 .

It is a super-2 number, since 2×2810242168442² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2810242168393 and 2810242168402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702560542109 + ... + 702560542112.

Almost surely, 2^{2810242168442} is an apocalyptic number.

2810242168442 is a deficient number, since it is larger than the sum of its proper divisors (1405121084224).

2810242168442 is a wasteful number, since it uses less digits than its factorization.

2810242168442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405121084223.

The product of its (nonzero) digits is 393216, while the sum is 44.

The spelling of 2810242168442 in words is "two trillion, eight hundred ten billion, two hundred forty-two million, one hundred sixty-eight thousand, four hundred forty-two".