26450136406 has 16 divisors (see below), whose sum is σ = 40034347200. Its totient is φ = 13105767040.

The previous prime is 26450136403. The next prime is 26450136437. The reversal of 26450136406 is 60463105462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26450136403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25470 + ... + 231406.

It is an arithmetic number, because the mean of its divisors is an integer number (2502146700).

Almost surely, 2^26450136406 is an apocalyptic number.

26450136406 is a deficient number, since it is larger than the sum of its proper divisors (13584210794).

26450136406 is a wasteful number, since it uses less digits than its factorization.

26450136406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206519.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 26450136406 in words is "twenty-six billion, four hundred fifty million, one hundred thirty-six thousand, four hundred six".