26999991120101 has 2 divisors, whose sum is σ = 26999991120102. Its totient is φ = 26999991120100.

The previous prime is 26999991120079. The next prime is 26999991120149. The reversal of 26999991120101 is 10102119999962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21984854817601 + 5015136302500 = 4688801^2 + 2239450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26999991120101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26999991120181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13499995560050 + 13499995560051.

It is an arithmetic number, because the mean of its divisors is an integer number (13499995560051).

Almost surely, 2^{26999991120101} is an apocalyptic number.

It is an amenable number.

26999991120101 is a deficient number, since it is larger than the sum of its proper divisors (1).

26999991120101 is an equidigital number, since it uses as much as digits as its factorization.

26999991120101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1417176, while the sum is 59.

The spelling of 26999991120101 in words is "twenty-six trillion, nine hundred ninety-nine billion, nine hundred ninety-one million, one hundred twenty thousand, one hundred one".