26390329916 has 12 divisors (see below), whose sum is σ = 48899729088. Its totient is φ = 12418978752.

The previous prime is 26390329913. The next prime is 26390329921. The reversal of 26390329916 is 61992309362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26390329913) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 194046476 + ... + 194046611.

It is an arithmetic number, because the mean of its divisors is an integer number (4074977424).

Almost surely, 2^26390329916 is an apocalyptic number.

It is an amenable number.

26390329916 is a deficient number, since it is larger than the sum of its proper divisors (22509399172).

26390329916 is a wasteful number, since it uses less digits than its factorization.

26390329916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388093108 (or 388093106 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 50.

The spelling of 26390329916 in words is "twenty-six billion, three hundred ninety million, three hundred twenty-nine thousand, nine hundred sixteen".