26406508906029 has 12 divisors (see below), whose sum is σ = 40957034221824. Its totient is φ = 15089433660504.

The previous prime is 26406508906021. The next prime is 26406508906069. The reversal of 26406508906029 is 92060980560462.

It is a happy number.

It is not a de Polignac number, because 26406508906029 - 2³ = 26406508906021 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26406508906029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26406508906021) 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 11 ways as a sum of consecutive naturals, for example, 89818057357 + ... + 89818057650.

It is an arithmetic number, because the mean of its divisors is an integer number (3413086185152).

Almost surely, 2^{26406508906029} is an apocalyptic number.

It is an amenable number.

26406508906029 is a deficient number, since it is larger than the sum of its proper divisors (14550525315795).

26406508906029 is a wasteful number, since it uses less digits than its factorization.

26406508906029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179636115024 (or 179636115017 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 57.

The spelling of 26406508906029 in words is "twenty-six trillion, four hundred six billion, five hundred eight million, nine hundred six thousand, twenty-nine".