26318555387 has 2 divisors, whose sum is σ = 26318555388. Its totient is φ = 26318555386.

The previous prime is 26318555381. The next prime is 26318555399. The reversal of 26318555387 is 78355581362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26318555387 - 2⁴ = 26318555371 is a prime.

It is not a weakly prime, because it can be changed into another prime (26318555381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13159277693 + 13159277694.

It is an arithmetic number, because the mean of its divisors is an integer number (13159277694).

Almost surely, 2^26318555387 is an apocalyptic number.

26318555387 is a deficient number, since it is larger than the sum of its proper divisors (1).

26318555387 is an equidigital number, since it uses as much as digits as its factorization.

26318555387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048000, while the sum is 53.

The spelling of 26318555387 in words is "twenty-six billion, three hundred eighteen million, five hundred fifty-five thousand, three hundred eighty-seven".