26971514749 has 2 divisors, whose sum is σ = 26971514750. Its totient is φ = 26971514748.

The previous prime is 26971514711. The next prime is 26971514777. The reversal of 26971514749 is 94741517962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16652612025 + 10318902724 = 129045^2 + 101582^2 .

It is a cyclic number.

It is not a de Polignac number, because 26971514749 - 2²¹ = 26969417597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26971514749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26971514789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13485757374 + 13485757375.

It is an arithmetic number, because the mean of its divisors is an integer number (13485757375).

Almost surely, 2^26971514749 is an apocalyptic number.

It is an amenable number.

26971514749 is a deficient number, since it is larger than the sum of its proper divisors (1).

26971514749 is an equidigital number, since it uses as much as digits as its factorization.

26971514749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 55.

The spelling of 26971514749 in words is "twenty-six billion, nine hundred seventy-one million, five hundred fourteen thousand, seven hundred forty-nine".