26834638407 has 16 divisors (see below), whose sum is σ = 38539511808. Its totient is φ = 16559943840.

The previous prime is 26834638367. The next prime is 26834638459. The reversal of 26834638407 is 70483643862.

It is not a de Polignac number, because 26834638407 - 2¹¹ = 26834636359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26834638407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26834638487) 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 15 ways as a sum of consecutive naturals, for example, 6270568 + ... + 6274845.

It is an arithmetic number, because the mean of its divisors is an integer number (2408719488).

Almost surely, 2^26834638407 is an apocalyptic number.

26834638407 is a deficient number, since it is larger than the sum of its proper divisors (11704873401).

26834638407 is a wasteful number, since it uses less digits than its factorization.

26834638407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12545470.

The product of its (nonzero) digits is 4644864, while the sum is 51.

The spelling of 26834638407 in words is "twenty-six billion, eight hundred thirty-four million, six hundred thirty-eight thousand, four hundred seven".