26145655013 has 2 divisors, whose sum is σ = 26145655014. Its totient is φ = 26145655012.

The previous prime is 26145654991. The next prime is 26145655097. The reversal of 26145655013 is 31055654162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24621689569 + 1523965444 = 156913^2 + 39038^2 .

It is a cyclic number.

It is not a de Polignac number, because 26145655013 - 2¹² = 26145650917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26145655313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13072827506 + 13072827507.

It is an arithmetic number, because the mean of its divisors is an integer number (13072827507).

Almost surely, 2^26145655013 is an apocalyptic number.

It is an amenable number.

26145655013 is a deficient number, since it is larger than the sum of its proper divisors (1).

26145655013 is an equidigital number, since it uses as much as digits as its factorization.

26145655013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 26145655013 in words is "twenty-six billion, one hundred forty-five million, six hundred fifty-five thousand, thirteen".