26091449438 has 8 divisors (see below), whose sum is σ = 39139905288. Its totient is φ = 13044814344.

The previous prime is 26091449383. The next prime is 26091449441. The reversal of 26091449438 is 83494419062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418781 + ... + 477032.

It is an arithmetic number, because the mean of its divisors is an integer number (4892488161).

Almost surely, 2^26091449438 is an apocalyptic number.

26091449438 is a deficient number, since it is larger than the sum of its proper divisors (13048455850).

26091449438 is a wasteful number, since it uses less digits than its factorization.

26091449438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910378.

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 26091449438 in words is "twenty-six billion, ninety-one million, four hundred forty-nine thousand, four hundred thirty-eight".