26641262387 has 2 divisors, whose sum is σ = 26641262388. Its totient is φ = 26641262386.

The previous prime is 26641262383. The next prime is 26641262393. The reversal of 26641262387 is 78326214662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26641262387 - 2² = 26641262383 is a prime.

It is not a weakly prime, because it can be changed into another prime (26641262381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13320631193 + 13320631194.

It is an arithmetic number, because the mean of its divisors is an integer number (13320631194).

Almost surely, 2^26641262387 is an apocalyptic number.

26641262387 is a deficient number, since it is larger than the sum of its proper divisors (1).

26641262387 is an equidigital number, since it uses as much as digits as its factorization.

26641262387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 47.

The spelling of 26641262387 in words is "twenty-six billion, six hundred forty-one million, two hundred sixty-two thousand, three hundred eighty-seven".