26440325426 has 16 divisors (see below), whose sum is σ = 40852303128. Its totient is φ = 12826454400.

The previous prime is 26440325407. The next prime is 26440325449. The reversal of 26440325426 is 62452304462.

It can be written as a sum of positive squares in 4 ways, for example, as 2585214025 + 23855111401 = 50845^2 + 154451^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26440325426.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875885 + ... + 905568.

Almost surely, 2^26440325426 is an apocalyptic number.

26440325426 is a deficient number, since it is larger than the sum of its proper divisors (14411977702).

26440325426 is a wasteful number, since it uses less digits than its factorization.

26440325426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781677.

The product of its (nonzero) digits is 276480, while the sum is 38.

Adding to 26440325426 its reverse (62452304462), we get a palindrome (88892629888).

The spelling of 26440325426 in words is "twenty-six billion, four hundred forty million, three hundred twenty-five thousand, four hundred twenty-six".