26927883709 has 2 divisors, whose sum is σ = 26927883710. Its totient is φ = 26927883708.

The previous prime is 26927883701. The next prime is 26927883727. The reversal of 26927883709 is 90738872962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20710088100 + 6217795609 = 143910^2 + 78853^2 .

It is a cyclic number.

It is not a de Polignac number, because 26927883709 - 2³ = 26927883701 is a prime.

It is a super-2 number, since 2×26927883709² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26927883701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13463941854 + 13463941855.

It is an arithmetic number, because the mean of its divisors is an integer number (13463941855).

Almost surely, 2^26927883709 is an apocalyptic number.

It is an amenable number.

26927883709 is a deficient number, since it is larger than the sum of its proper divisors (1).

26927883709 is an equidigital number, since it uses as much as digits as its factorization.

26927883709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 26927883709 in words is "twenty-six billion, nine hundred twenty-seven million, eight hundred eighty-three thousand, seven hundred nine".