26692616129 has 2 divisors, whose sum is σ = 26692616130. Its totient is φ = 26692616128.

The previous prime is 26692616107. The next prime is 26692616233. The reversal of 26692616129 is 92161629662.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26056416400 + 636199729 = 161420^2 + 25223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26692616129 is a prime.

It is not a weakly prime, because it can be changed into another prime (26692636129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13346308064 + 13346308065.

It is an arithmetic number, because the mean of its divisors is an integer number (13346308065).

Almost surely, 2^26692616129 is an apocalyptic number.

It is an amenable number.

26692616129 is a deficient number, since it is larger than the sum of its proper divisors (1).

26692616129 is an equidigital number, since it uses as much as digits as its factorization.

26692616129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 50.

The spelling of 26692616129 in words is "twenty-six billion, six hundred ninety-two million, six hundred sixteen thousand, one hundred twenty-nine".