26458420207 has 2 divisors, whose sum is σ = 26458420208. Its totient is φ = 26458420206.

The previous prime is 26458420187. The next prime is 26458420211. The reversal of 26458420207 is 70202485462.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26458420207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26458420207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26458420267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13229210103 + 13229210104.

It is an arithmetic number, because the mean of its divisors is an integer number (13229210104).

Almost surely, 2^26458420207 is an apocalyptic number.

26458420207 is a deficient number, since it is larger than the sum of its proper divisors (1).

26458420207 is an equidigital number, since it uses as much as digits as its factorization.

26458420207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 215040, while the sum is 40.

The spelling of 26458420207 in words is "twenty-six billion, four hundred fifty-eight million, four hundred twenty thousand, two hundred seven".