26622881387 has 2 divisors, whose sum is σ = 26622881388. Its totient is φ = 26622881386.

The previous prime is 26622881371. The next prime is 26622881393. The reversal of 26622881387 is 78318822662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26622881387 - 2⁴ = 26622881371 is a prime.

It is not a weakly prime, because it can be changed into another prime (26622881287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13311440693 + 13311440694.

It is an arithmetic number, because the mean of its divisors is an integer number (13311440694).

Almost surely, 2^26622881387 is an apocalyptic number.

26622881387 is a deficient number, since it is larger than the sum of its proper divisors (1).

26622881387 is an equidigital number, since it uses as much as digits as its factorization.

26622881387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3096576, while the sum is 53.

The spelling of 26622881387 in words is "twenty-six billion, six hundred twenty-two million, eight hundred eighty-one thousand, three hundred eighty-seven".