26862554404 has 81 divisors (see below), whose sum is σ = 57277975377. Its totient is φ = 10990344288.

The previous prime is 26862554401. The next prime is 26862554419. The reversal of 26862554404 is 40445526862.

The square root of 26862554404 is 163898.

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., 21844248804 + 5018305600 = 147798^2 + 70840^2 .

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (26862554401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 52774902 + ... + 52775410.

Almost surely, 2^26862554404 is an apocalyptic number.

26862554404 is the 163898-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26862554404

26862554404 is an abundant number, since it is smaller than the sum of its proper divisors (30415420973).

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

26862554404 is an equidigital number, since it uses as much as digits as its factorization.

26862554404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 46.

The spelling of 26862554404 in words is "twenty-six billion, eight hundred sixty-two million, five hundred fifty-four thousand, four hundred four".