26152505149 has 2 divisors, whose sum is σ = 26152505150. Its totient is φ = 26152505148.

The previous prime is 26152505147. The next prime is 26152505161. The reversal of 26152505149 is 94150525162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19630812100 + 6521693049 = 140110^2 + 80757^2 .

It is a cyclic number.

It is not a de Polignac number, because 26152505149 - 2¹ = 26152505147 is a prime.

Together with 26152505147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26152505147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13076252574 + 13076252575.

It is an arithmetic number, because the mean of its divisors is an integer number (13076252575).

Almost surely, 2^26152505149 is an apocalyptic number.

It is an amenable number.

26152505149 is a deficient number, since it is larger than the sum of its proper divisors (1).

26152505149 is an equidigital number, since it uses as much as digits as its factorization.

26152505149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 26152505149 in words is "twenty-six billion, one hundred fifty-two million, five hundred five thousand, one hundred forty-nine".