24894212842 has 4 divisors (see below), whose sum is σ = 37341319266. Its totient is φ = 12447106420.

The previous prime is 24894212821. The next prime is 24894212867. The reversal of 24894212842 is 24821249842.

It is a Cunningham number, because it is equal to 157779²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24821249842 = 2 ⋅12410624921.

It can be written as a sum of positive squares in only one way, i.e., 24894212841 + 1 = 157779^2 + 1^2 .

It is a junction number, because it is equal to n+sod(n) for n = 24894212792 and 24894212801.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6223553209 + ... + 6223553212.

Almost surely, 2^24894212842 is an apocalyptic number.

24894212842 is a deficient number, since it is larger than the sum of its proper divisors (12447106424).

24894212842 is a wasteful number, since it uses less digits than its factorization.

24894212842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12447106423.

The product of its digits is 589824, while the sum is 46.

The spelling of 24894212842 in words is "twenty-four billion, eight hundred ninety-four million, two hundred twelve thousand, eight hundred forty-two".