26318447412 has 12 divisors (see below), whose sum is σ = 61409710656. Its totient is φ = 8772815800.

The previous prime is 26318447381. The next prime is 26318447413. The reversal of 26318447412 is 21474481362.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26318447413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096601964 + ... + 1096601987.

It is an arithmetic number, because the mean of its divisors is an integer number (5117475888).

Almost surely, 2^26318447412 is an apocalyptic number.

It is an amenable number.

26318447412 is an abundant number, since it is smaller than the sum of its proper divisors (35091263244).

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

26318447412 is a wasteful number, since it uses less digits than its factorization.

26318447412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193203958 (or 2193203956 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The spelling of 26318447412 in words is "twenty-six billion, three hundred eighteen million, four hundred forty-seven thousand, four hundred twelve".