26238591436 has 12 divisors (see below), whose sum is σ = 45924901120. Its totient is φ = 13117191120.

The previous prime is 26238591427. The next prime is 26238591437. The reversal of 26238591436 is 63419583262.

It is a self number, because there is not a number n which added to its sum of digits gives 26238591436.

It is not an unprimeable number, because it can be changed into a prime (26238591437) 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 3 ways as a sum of consecutive naturals, for example, 497931 + ... + 548098.

Almost surely, 2^26238591436 is an apocalyptic number.

It is an amenable number.

26238591436 is a deficient number, since it is larger than the sum of its proper divisors (19686309684).

26238591436 is a wasteful number, since it uses less digits than its factorization.

26238591436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052304 (or 1052302 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The spelling of 26238591436 in words is "twenty-six billion, two hundred thirty-eight million, five hundred ninety-one thousand, four hundred thirty-six".