26487464389 has 8 divisors (see below), whose sum is σ = 27403175520. Its totient is φ = 25571910000.

The previous prime is 26487464293. The next prime is 26487464417. The reversal of 26487464389 is 98346478462.

It is a happy number.

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

It is not a de Polignac number, because 26487464389 - 2¹¹ = 26487462341 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 (26487464089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381234 + ... + 445324.

It is an arithmetic number, because the mean of its divisors is an integer number (3425396940).

Almost surely, 2^26487464389 is an apocalyptic number.

26487464389 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

26487464389 is a deficient number, since it is larger than the sum of its proper divisors (915711131).

26487464389 is a wasteful number, since it uses less digits than its factorization.

26487464389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78371.

The product of its digits is 55738368, while the sum is 61.

The spelling of 26487464389 in words is "twenty-six billion, four hundred eighty-seven million, four hundred sixty-four thousand, three hundred eighty-nine".