26843911684697 has 2 divisors, whose sum is σ = 26843911684698. Its totient is φ = 26843911684696.

The previous prime is 26843911684663. The next prime is 26843911684753. The reversal of 26843911684697 is 79648611934862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25778152773961 + 1065758910736 = 5077219^2 + 1032356^2 .

It is a cyclic number.

It is not a de Polignac number, because 26843911684697 - 2⁶ = 26843911684633 is a prime.

It is not a weakly prime, because it can be changed into another prime (26843911684627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13421955842348 + 13421955842349.

It is an arithmetic number, because the mean of its divisors is an integer number (13421955842349).

Almost surely, 2^{26843911684697} is an apocalyptic number.

It is an amenable number.

26843911684697 is a deficient number, since it is larger than the sum of its proper divisors (1).

26843911684697 is an equidigital number, since it uses as much as digits as its factorization.

26843911684697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752467968, while the sum is 74.

The spelling of 26843911684697 in words is "twenty-six trillion, eight hundred forty-three billion, nine hundred eleven million, six hundred eighty-four thousand, six hundred ninety-seven".