26279302668 has 24 divisors (see below), whose sum is σ = 61323378480. Its totient is φ = 8759052480.

The previous prime is 26279302657. The next prime is 26279302669. The reversal of 26279302668 is 86620397262.

It is a self number, because there is not a number n which added to its sum of digits gives 26279302668.

It is not an unprimeable number, because it can be changed into a prime (26279302669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75978 + ... + 241518.

It is an arithmetic number, because the mean of its divisors is an integer number (2555140770).

Almost surely, 2^26279302668 is an apocalyptic number.

It is an amenable number.

26279302668 is an abundant number, since it is smaller than the sum of its proper divisors (35044075812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26279302668 is a wasteful number, since it uses less digits than its factorization.

26279302668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178777 (or 178775 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 26279302668 in words is "twenty-six billion, two hundred seventy-nine million, three hundred two thousand, six hundred sixty-eight".