26955678551 has 8 divisors (see below), whose sum is σ = 27253228704. Its totient is φ = 26658817920.

The previous prime is 26955678523. The next prime is 26955678593. The reversal of 26955678551 is 15587655962.

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 26955678551 - 2¹⁰ = 26955677527 is a prime.

It is a super-2 number, since 2×26955678551² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26955678511) 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, 93566 + ... + 250331.

It is an arithmetic number, because the mean of its divisors is an integer number (3406653588).

Almost surely, 2^26955678551 is an apocalyptic number.

26955678551 is a deficient number, since it is larger than the sum of its proper divisors (297550153).

26955678551 is a wasteful number, since it uses less digits than its factorization.

26955678551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344761.

The product of its digits is 22680000, while the sum is 59.

The spelling of 26955678551 in words is "twenty-six billion, nine hundred fifty-five million, six hundred seventy-eight thousand, five hundred fifty-one".