26897540437 has 8 divisors (see below), whose sum is σ = 29978683200. Its totient is φ = 23982945984.

The previous prime is 26897540413. The next prime is 26897540447. The reversal of 26897540437 is 73404579862.

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

It is a cyclic number.

It is not a de Polignac number, because 26897540437 - 2¹⁹ = 26897016149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26897540447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 41636737 + ... + 41637382.

It is an arithmetic number, because the mean of its divisors is an integer number (3747335400).

Almost surely, 2^26897540437 is an apocalyptic number.

It is an amenable number.

26897540437 is a deficient number, since it is larger than the sum of its proper divisors (3081142763).

26897540437 is a wasteful number, since it uses less digits than its factorization.

26897540437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83274155.

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 26897540437 in words is "twenty-six billion, eight hundred ninety-seven million, five hundred forty thousand, four hundred thirty-seven".