26276990905 has 16 divisors (see below), whose sum is σ = 34546621824. Its totient is φ = 19028510080.

The previous prime is 26276990903. The next prime is 26276990947. The reversal of 26276990905 is 50909967262.

It is a happy number.

It is not a de Polignac number, because 26276990905 - 2¹ = 26276990903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (26276990903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1012429 + ... + 1038058.

It is an arithmetic number, because the mean of its divisors is an integer number (2159163864).

Almost surely, 2^26276990905 is an apocalyptic number.

It is an amenable number.

26276990905 is a deficient number, since it is larger than the sum of its proper divisors (8269630919).

26276990905 is a wasteful number, since it uses less digits than its factorization.

26276990905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050736.

The product of its (nonzero) digits is 3674160, while the sum is 55.

The spelling of 26276990905 in words is "twenty-six billion, two hundred seventy-six million, nine hundred ninety thousand, nine hundred five".