26719848769 has 2 divisors, whose sum is σ = 26719848770. Its totient is φ = 26719848768.

The previous prime is 26719848689. The next prime is 26719848797. The reversal of 26719848769 is 96784891762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26660358400 + 59490369 = 163280^2 + 7713^2 .

It is a cyclic number.

It is not a de Polignac number, because 26719848769 - 2⁷ = 26719848641 is a prime.

It is a super-2 number, since 2×26719848769² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26719878769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13359924384 + 13359924385.

It is an arithmetic number, because the mean of its divisors is an integer number (13359924385).

Almost surely, 2^26719848769 is an apocalyptic number.

It is an amenable number.

26719848769 is a deficient number, since it is larger than the sum of its proper divisors (1).

26719848769 is an equidigital number, since it uses as much as digits as its factorization.

26719848769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73156608, while the sum is 67.

The spelling of 26719848769 in words is "twenty-six billion, seven hundred nineteen million, eight hundred forty-eight thousand, seven hundred sixty-nine".