26836951911257 has 2 divisors, whose sum is σ = 26836951911258. Its totient is φ = 26836951911256.

The previous prime is 26836951911223. The next prime is 26836951911307. The reversal of 26836951911257 is 75211915963862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18710028109081 + 8126923802176 = 4325509^2 + 2850776^2 .

It is a cyclic number.

It is not a de Polignac number, because 26836951911257 - 2¹⁶ = 26836951845721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26836951911193 and 26836951911202.

It is not a weakly prime, because it can be changed into another prime (26836951911457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13418475955628 + 13418475955629.

It is an arithmetic number, because the mean of its divisors is an integer number (13418475955629).

Almost surely, 2^{26836951911257} is an apocalyptic number.

It is an amenable number.

26836951911257 is a deficient number, since it is larger than the sum of its proper divisors (1).

26836951911257 is an equidigital number, since it uses as much as digits as its factorization.

26836951911257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48988800, while the sum is 65.

The spelling of 26836951911257 in words is "twenty-six trillion, eight hundred thirty-six billion, nine hundred fifty-one million, nine hundred eleven thousand, two hundred fifty-seven".