26130399073 has 2 divisors, whose sum is σ = 26130399074. Its totient is φ = 26130399072.

The previous prime is 26130399023. The next prime is 26130399089. The reversal of 26130399073 is 37099303162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15095316769 + 11035082304 = 122863^2 + 105048^2 .

It is a cyclic number.

It is not a de Polignac number, because 26130399073 - 2⁹ = 26130398561 is a prime.

It is a super-3 number, since 3×26130399073³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (26130399013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13065199536 + 13065199537.

It is an arithmetic number, because the mean of its divisors is an integer number (13065199537).

Almost surely, 2^26130399073 is an apocalyptic number.

It is an amenable number.

26130399073 is a deficient number, since it is larger than the sum of its proper divisors (1).

26130399073 is an equidigital number, since it uses as much as digits as its factorization.

26130399073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708, while the sum is 43.

The spelling of 26130399073 in words is "twenty-six billion, one hundred thirty million, three hundred ninety-nine thousand, seventy-three".