26904334465 has 4 divisors (see below), whose sum is σ = 32285201364. Its totient is φ = 21523467568.

The previous prime is 26904334463. The next prime is 26904334489. The reversal of 26904334465 is 56443340962.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12002517136 + 14901817329 = 109556^2 + 122073^2 .

It is a cyclic number.

It is not a de Polignac number, because 26904334465 - 2¹ = 26904334463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26904334463) 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, 2690433442 + ... + 2690433451.

It is an arithmetic number, because the mean of its divisors is an integer number (8071300341).

Almost surely, 2^26904334465 is an apocalyptic number.

It is an amenable number.

26904334465 is a deficient number, since it is larger than the sum of its proper divisors (5380866899).

26904334465 is an equidigital number, since it uses as much as digits as its factorization.

26904334465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5380866898.

The product of its (nonzero) digits is 1866240, while the sum is 46.

The spelling of 26904334465 in words is "twenty-six billion, nine hundred four million, three hundred thirty-four thousand, four hundred sixty-five".