26299129138 has 32 divisors (see below), whose sum is σ = 41941785600. Its totient is φ = 12344197824.

The previous prime is 26299129123. The next prime is 26299129163. The reversal of 26299129138 is 83192199262.

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 15 ways as a sum of consecutive naturals, for example, 3771331 + ... + 3778297.

It is an arithmetic number, because the mean of its divisors is an integer number (1310680800).

Almost surely, 2^26299129138 is an apocalyptic number.

26299129138 is a deficient number, since it is larger than the sum of its proper divisors (15642656462).

26299129138 is a wasteful number, since it uses less digits than its factorization.

26299129138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8794.

The product of its digits is 839808, while the sum is 52.

The spelling of 26299129138 in words is "twenty-six billion, two hundred ninety-nine million, one hundred twenty-nine thousand, one hundred thirty-eight".