26491359430236 has 24 divisors (see below), whose sum is σ = 61887735563920. Its totient is φ = 8819801206272.

The previous prime is 26491359430229. The next prime is 26491359430241. The reversal of 26491359430236 is 63203495319462.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331481781 + ... + 1331501676.

Almost surely, 2^{26491359430236} is an apocalyptic number.

It is an amenable number.

26491359430236 is an abundant number, since it is smaller than the sum of its proper divisors (35396376133684).

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

26491359430236 is a wasteful number, since it uses less digits than its factorization.

26491359430236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662984293 (or 2662984291 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 57.

The spelling of 26491359430236 in words is "twenty-six trillion, four hundred ninety-one billion, three hundred fifty-nine million, four hundred thirty thousand, two hundred thirty-six".