26316078947 has 2 divisors, whose sum is σ = 26316078948. Its totient is φ = 26316078946.

The previous prime is 26316078911. The next prime is 26316079003. The reversal of 26316078947 is 74987061362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26316078947 - 2¹⁸ = 26315816803 is a prime.

It is a super-2 number, since 2×26316078947² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26316078907) 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, 13158039473 + 13158039474.

It is an arithmetic number, because the mean of its divisors is an integer number (13158039474).

Almost surely, 2^26316078947 is an apocalyptic number.

26316078947 is a deficient number, since it is larger than the sum of its proper divisors (1).

26316078947 is an equidigital number, since it uses as much as digits as its factorization.

26316078947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 26316078947 in words is "twenty-six billion, three hundred sixteen million, seventy-eight thousand, nine hundred forty-seven".