26278450126 has 4 divisors (see below), whose sum is σ = 39417675192. Its totient is φ = 13139225062.

The previous prime is 26278450117. The next prime is 26278450141. The reversal of 26278450126 is 62105487262.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6569612530 + ... + 6569612533.

It is an arithmetic number, because the mean of its divisors is an integer number (9854418798).

Almost surely, 2^26278450126 is an apocalyptic number.

26278450126 is a deficient number, since it is larger than the sum of its proper divisors (13139225066).

26278450126 is a wasteful number, since it uses less digits than its factorization.

26278450126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13139225065.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 26278450126 in words is "twenty-six billion, two hundred seventy-eight million, four hundred fifty thousand, one hundred twenty-six".