26687796496 has 15 divisors (see below), whose sum is σ = 51708871813. Its totient is φ = 13343571520.

The previous prime is 26687796481. The next prime is 26687796497. The reversal of 26687796496 is 69469778662.

The square root of 26687796496 is 163364.

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., 24534836496 + 2152960000 = 156636^2 + 46400^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26687796497) 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, 633036 + ... + 673876.

Almost surely, 2^26687796496 is an apocalyptic number.

26687796496 is the 163364-th square number.

It is an amenable number.

26687796496 is a deficient number, since it is larger than the sum of its proper divisors (25021075317).

26687796496 is an frugal number, since it uses more digits than its factorization.

26687796496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81690 (or 40843 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 70.

The spelling of 26687796496 in words is "twenty-six billion, six hundred eighty-seven million, seven hundred ninety-six thousand, four hundred ninety-six".