26405145712 has 20 divisors (see below), whose sum is σ = 55810876536. Its totient is φ = 12002338880.

The previous prime is 26405145673. The next prime is 26405145713. The reversal of 26405145712 is 21754150462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26405145713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75014443 + ... + 75014794.

Almost surely, 2^26405145712 is an apocalyptic number.

26405145712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

26405145712 is an abundant number, since it is smaller than the sum of its proper divisors (29405730824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26405145712 is a wasteful number, since it uses less digits than its factorization.

26405145712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150029256 (or 150029250 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 26405145712 in words is "twenty-six billion, four hundred five million, one hundred forty-five thousand, seven hundred twelve".