26438574122 has 4 divisors (see below), whose sum is σ = 39657861186. Its totient is φ = 13219287060.

The previous prime is 26438574121. The next prime is 26438574133. The reversal of 26438574122 is 22147583462.

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

It can be written as a sum of positive squares in only one way, i.e., 13492913281 + 12945660841 = 116159^2 + 113779^2 .

It is not an unprimeable number, because it can be changed into a prime (26438574121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6609643529 + ... + 6609643532.

Almost surely, 2^26438574122 is an apocalyptic number.

26438574122 is a deficient number, since it is larger than the sum of its proper divisors (13219287064).

26438574122 is a wasteful number, since it uses less digits than its factorization.

26438574122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13219287063.

The product of its digits is 645120, while the sum is 44.

The spelling of 26438574122 in words is "twenty-six billion, four hundred thirty-eight million, five hundred seventy-four thousand, one hundred twenty-two".