26143602601 has 2 divisors, whose sum is σ = 26143602602. Its totient is φ = 26143602600.

The previous prime is 26143602587. The next prime is 26143602619. The reversal of 26143602601 is 10620634162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18682789225 + 7460813376 = 136685^2 + 86376^2 .

It is a cyclic number.

It is not a de Polignac number, because 26143602601 - 2¹³ = 26143594409 is a prime.

It is not a weakly prime, because it can be changed into another prime (26143602301) 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 as a sum of consecutive naturals, namely, 13071801300 + 13071801301.

It is an arithmetic number, because the mean of its divisors is an integer number (13071801301).

Almost surely, 2^26143602601 is an apocalyptic number.

It is an amenable number.

26143602601 is a deficient number, since it is larger than the sum of its proper divisors (1).

26143602601 is an equidigital number, since it uses as much as digits as its factorization.

26143602601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 26143602601 in words is "twenty-six billion, one hundred forty-three million, six hundred two thousand, six hundred one".