26987226698560 has 56 divisors (see below), whose sum is σ = 64265354542440. Its totient is φ = 10794551199744.

The previous prime is 26987226698557. The next prime is 26987226698563. The reversal of 26987226698560 is 6589662278962.

It is an interprime number because it is at equal distance from previous prime (26987226698557) and next prime (26987226698563).

It can be written as a sum of positive squares in 4 ways, for example, as 336687741504 + 26650538957056 = 580248^2 + 5162416^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26987226698563) 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, 8990482 + ... + 11610478.

Almost surely, 2^{26987226698560} is an apocalyptic number.

26987226698560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26987226698560 is an abundant number, since it is smaller than the sum of its proper divisors (37278127843880).

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

26987226698560 is a wasteful number, since it uses less digits than its factorization.

26987226698560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652203 (or 2652193 counting only the distinct ones).

The product of its (nonzero) digits is 1881169920, while the sum is 76.

The spelling of 26987226698560 in words is "twenty-six trillion, nine hundred eighty-seven billion, two hundred twenty-six million, six hundred ninety-eight thousand, five hundred sixty".