26661011471 has 2 divisors, whose sum is σ = 26661011472. Its totient is φ = 26661011470.

The previous prime is 26661011459. The next prime is 26661011473. The reversal of 26661011471 is 17411016662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26661011471 - 2¹⁴ = 26660995087 is a prime.

It is a super-3 number, since 3×26661011471³ (a number of 32 digits) contains 333 as substring.

Together with 26661011473, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26661011473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13330505735 + 13330505736.

It is an arithmetic number, because the mean of its divisors is an integer number (13330505736).

Almost surely, 2^26661011471 is an apocalyptic number.

26661011471 is a deficient number, since it is larger than the sum of its proper divisors (1).

26661011471 is an equidigital number, since it uses as much as digits as its factorization.

26661011471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 26661011471 in words is "twenty-six billion, six hundred sixty-one million, eleven thousand, four hundred seventy-one".