26916297407 has 2 divisors, whose sum is σ = 26916297408. Its totient is φ = 26916297406.

The previous prime is 26916297391. The next prime is 26916297409. The reversal of 26916297407 is 70479261962.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26916297407 - 2⁴ = 26916297391 is a prime.

It is a super-2 number, since 2×26916297407² (a number of 22 digits) contains 22 as substring.

Together with 26916297409, 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 (26916297409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13458148703 + 13458148704.

It is an arithmetic number, because the mean of its divisors is an integer number (13458148704).

Almost surely, 2^26916297407 is an apocalyptic number.

26916297407 is a deficient number, since it is larger than the sum of its proper divisors (1).

26916297407 is an equidigital number, since it uses as much as digits as its factorization.

26916297407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The spelling of 26916297407 in words is "twenty-six billion, nine hundred sixteen million, two hundred ninety-seven thousand, four hundred seven".