26040645427 has 2 divisors, whose sum is σ = 26040645428. Its totient is φ = 26040645426.

The previous prime is 26040645419. The next prime is 26040645431. The reversal of 26040645427 is 72454604062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26040645427 - 2³ = 26040645419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26040645427.

It is not a weakly prime, because it can be changed into another prime (26040645457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13020322713 + 13020322714.

It is an arithmetic number, because the mean of its divisors is an integer number (13020322714).

Almost surely, 2^26040645427 is an apocalyptic number.

26040645427 is a deficient number, since it is larger than the sum of its proper divisors (1).

26040645427 is an equidigital number, since it uses as much as digits as its factorization.

26040645427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 26040645427 in words is "twenty-six billion, forty million, six hundred forty-five thousand, four hundred twenty-seven".