26041381578 has 40 divisors (see below), whose sum is σ = 58361622660. Its totient is φ = 8679026880.

The previous prime is 26041381571. The next prime is 26041381601. The reversal of 26041381578 is 87518314062.

26041381578 is a `hidden beast` number, since 2 + 6 + 0 + 41 + 38 + 1 + 578 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25626566889 + 414814689 = 160083^2 + 20367^2 .

It is not an unprimeable number, because it can be changed into a prime (26041381571) 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 19 ways as a sum of consecutive naturals, for example, 1504638 + ... + 1521846.

Almost surely, 2^26041381578 is an apocalyptic number.

26041381578 is an abundant number, since it is smaller than the sum of its proper divisors (32320241082).

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

26041381578 is a wasteful number, since it uses less digits than its factorization.

26041381578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26564 (or 26555 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 26041381578 in words is "twenty-six billion, forty-one million, three hundred eighty-one thousand, five hundred seventy-eight".