26982661696 has 21 divisors (see below), whose sum is σ = 53546327121. Its totient is φ = 13490673792.

The previous prime is 26982661679. The next prime is 26982661697. The reversal of 26982661696 is 69616628962.

The square root of 26982661696 is 164264.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 18506881600 + 8475780096 = 136040^2 + 92064^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26982661697) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1303846 + ... + 1324378.

It is an arithmetic number, because the mean of its divisors is an integer number (2549825101).

Almost surely, 2^26982661696 is an apocalyptic number.

26982661696 is the 164264-th square number.

It is an amenable number.

26982661696 is a deficient number, since it is larger than the sum of its proper divisors (26563665425).

26982661696 is an frugal number, since it uses more digits than its factorization.

26982661696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41078 (or 20535 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 61.

It can be divided in two parts, 2698266 and 1696, that added together give a palindrome (2699962).

The spelling of 26982661696 in words is "twenty-six billion, nine hundred eighty-two million, six hundred sixty-one thousand, six hundred ninety-six".