26540575603 has 2 divisors, whose sum is σ = 26540575604. Its totient is φ = 26540575602.

The previous prime is 26540575577. The next prime is 26540575639. The reversal of 26540575603 is 30657504562.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26540575603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26540575603.

It is not a weakly prime, because it can be changed into another prime (26540575643) 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, 13270287801 + 13270287802.

It is an arithmetic number, because the mean of its divisors is an integer number (13270287802).

Almost surely, 2^26540575603 is an apocalyptic number.

26540575603 is a deficient number, since it is larger than the sum of its proper divisors (1).

26540575603 is an equidigital number, since it uses as much as digits as its factorization.

26540575603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756000, while the sum is 43.

The spelling of 26540575603 in words is "twenty-six billion, five hundred forty million, five hundred seventy-five thousand, six hundred three".