26473078009 has 4 divisors (see below), whose sum is σ = 30254946304. Its totient is φ = 22691209716.

The previous prime is 26473078007. The next prime is 26473078019. The reversal of 26473078009 is 90087037462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 26473078009 - 2¹ = 26473078007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26473078009.

It is not an unprimeable number, because it can be changed into a prime (26473078007) 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, 1890934137 + ... + 1890934150.

It is an arithmetic number, because the mean of its divisors is an integer number (7563736576).

Almost surely, 2^26473078009 is an apocalyptic number.

It is an amenable number.

26473078009 is a deficient number, since it is larger than the sum of its proper divisors (3781868295).

26473078009 is an equidigital number, since it uses as much as digits as its factorization.

26473078009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781868294.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 26473078009 in words is "twenty-six billion, four hundred seventy-three million, seventy-eight thousand, nine".