26421625163 has 2 divisors, whose sum is σ = 26421625164. Its totient is φ = 26421625162.

The previous prime is 26421625147. The next prime is 26421625193. The reversal of 26421625163 is 36152612462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26421625163 - 2⁴ = 26421625147 is a prime.

It is a super-4 number, since 4×26421625163⁴ (a number of 43 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (26421625103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13210812581 + 13210812582.

It is an arithmetic number, because the mean of its divisors is an integer number (13210812582).

Almost surely, 2^26421625163 is an apocalyptic number.

26421625163 is a deficient number, since it is larger than the sum of its proper divisors (1).

26421625163 is an equidigital number, since it uses as much as digits as its factorization.

26421625163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The spelling of 26421625163 in words is "twenty-six billion, four hundred twenty-one million, six hundred twenty-five thousand, one hundred sixty-three".