26949160129 has 2 divisors, whose sum is σ = 26949160130. Its totient is φ = 26949160128.

The previous prime is 26949160061. The next prime is 26949160141. The reversal of 26949160129 is 92106194962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25233957904 + 1715202225 = 158852^2 + 41415^2 .

It is a cyclic number.

It is not a de Polignac number, because 26949160129 - 2¹⁷ = 26949029057 is a prime.

It is not a weakly prime, because it can be changed into another prime (26949160829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13474580064 + 13474580065.

It is an arithmetic number, because the mean of its divisors is an integer number (13474580065).

Almost surely, 2^26949160129 is an apocalyptic number.

It is an amenable number.

26949160129 is a deficient number, since it is larger than the sum of its proper divisors (1).

26949160129 is an equidigital number, since it uses as much as digits as its factorization.

26949160129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 49.

The spelling of 26949160129 in words is "twenty-six billion, nine hundred forty-nine million, one hundred sixty thousand, one hundred twenty-nine".