26205961408 has 56 divisors (see below), whose sum is σ = 57529073664. Its totient is φ = 11744006400.

The previous prime is 26205961391. The next prime is 26205961427. The reversal of 26205961408 is 80416950262.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212160 + ... + 312127.

Almost surely, 2^26205961408 is an apocalyptic number.

It is an amenable number.

26205961408 is an abundant number, since it is smaller than the sum of its proper divisors (31323112256).

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

26205961408 is a wasteful number, since it uses less digits than its factorization.

26205961408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524381 (or 524371 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 26205961408 in words is "twenty-six billion, two hundred five million, nine hundred sixty-one thousand, four hundred eight".