24642442642 has 8 divisors (see below), whose sum is σ = 37378986300. Its totient is φ = 12182780544.

The previous prime is 24642442607. The next prime is 24642442651. The reversal of 24642442642 is 24624424642.

It can be written as a sum of positive squares in 2 ways, for example, as 24015390961 + 627051681 = 154969^2 + 25041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 24642442595 and 24642442604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69220167 + ... + 69220522.

Almost surely, 2^24642442642 is an apocalyptic number.

24642442642 is a deficient number, since it is larger than the sum of its proper divisors (12736543658).

24642442642 is a wasteful number, since it uses less digits than its factorization.

24642442642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138440780.

The product of its digits is 589824, while the sum is 40.

The spelling of 24642442642 in words is "twenty-four billion, six hundred forty-two million, four hundred forty-two thousand, six hundred forty-two".