26827000381 has 2 divisors, whose sum is σ = 26827000382. Its totient is φ = 26827000380.

The previous prime is 26827000363. The next prime is 26827000427. The reversal of 26827000381 is 18300072862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22790431225 + 4036569156 = 150965^2 + 63534^2 .

It is a cyclic number.

It is not a de Polignac number, because 26827000381 - 2⁵ = 26827000349 is a prime.

It is a super-2 number, since 2×26827000381² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26827000381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26827030381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13413500190 + 13413500191.

It is an arithmetic number, because the mean of its divisors is an integer number (13413500191).

Almost surely, 2^26827000381 is an apocalyptic number.

It is an amenable number.

26827000381 is a deficient number, since it is larger than the sum of its proper divisors (1).

26827000381 is an equidigital number, since it uses as much as digits as its factorization.

26827000381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 26827000381 in words is "twenty-six billion, eight hundred twenty-seven million, three hundred eighty-one", and thus it is an aban number.