26663330042 has 8 divisors (see below), whose sum is σ = 40444377300. Its totient is φ = 13181870944.

The previous prime is 26663330033. The next prime is 26663330137. The reversal of 26663330042 is 24003336662.

It can be written as a sum of positive squares in 2 ways, for example, as 23740954561 + 2922375481 = 154081^2 + 54059^2 .

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 = 26663329984 and 26663330011.

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, 74896817 + ... + 74897172.

Almost surely, 2^26663330042 is an apocalyptic number.

26663330042 is a deficient number, since it is larger than the sum of its proper divisors (13781047258).

26663330042 is a wasteful number, since it uses less digits than its factorization.

26663330042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149794080.

The product of its (nonzero) digits is 93312, while the sum is 35.

The spelling of 26663330042 in words is "twenty-six billion, six hundred sixty-three million, three hundred thirty thousand, forty-two".