26020648240642 has 16 divisors (see below), whose sum is σ = 42579392985792. Its totient is φ = 11827525601520.

The previous prime is 26020648240637. The next prime is 26020648240687. The reversal of 26020648240642 is 24604284602062.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 26020648240592 and 26020648240601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4782763 + ... + 8655409.

It is an arithmetic number, because the mean of its divisors is an integer number (2661212061612).

Almost surely, 2^{26020648240642} is an apocalyptic number.

26020648240642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

26020648240642 is a deficient number, since it is larger than the sum of its proper divisors (16558744745150).

26020648240642 is a wasteful number, since it uses less digits than its factorization.

26020648240642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178073.

The product of its (nonzero) digits is 1769472, while the sum is 46.

The spelling of 26020648240642 in words is "twenty-six trillion, twenty billion, six hundred forty-eight million, two hundred forty thousand, six hundred forty-two".