26404428066514 has 16 divisors (see below), whose sum is σ = 39622346429400. Its totient is φ = 13196979621504.

The previous prime is 26404428066491. The next prime is 26404428066521. The reversal of 26404428066514 is 41566082440462.

It can be written as a sum of positive squares in 4 ways, for example, as 16098832152225 + 10305595914289 = 4012335^2 + 3210233^2 .

It is a super-2 number, since 2×26404428066514² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

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, 178918684 + ... + 179066200.

Almost surely, 2^{26404428066514} is an apocalyptic number.

26404428066514 is a deficient number, since it is larger than the sum of its proper divisors (13217918362886).

26404428066514 is a wasteful number, since it uses less digits than its factorization.

26404428066514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182397.

The product of its (nonzero) digits is 8847360, while the sum is 52.

The spelling of 26404428066514 in words is "twenty-six trillion, four hundred four billion, four hundred twenty-eight million, sixty-six thousand, five hundred fourteen".