26976523069 has 2 divisors, whose sum is σ = 26976523070. Its totient is φ = 26976523068.

The previous prime is 26976523039. The next prime is 26976523081. The reversal of 26976523069 is 96032567962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17839074969 + 9137448100 = 133563^2 + 95590^2 .

It is a cyclic number.

It is not a de Polignac number, because 26976523069 - 2⁵ = 26976523037 is a prime.

It is a super-2 number, since 2×26976523069² (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 (26976523039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13488261534 + 13488261535.

It is an arithmetic number, because the mean of its divisors is an integer number (13488261535).

Almost surely, 2^26976523069 is an apocalyptic number.

It is an amenable number.

26976523069 is a deficient number, since it is larger than the sum of its proper divisors (1).

26976523069 is an equidigital number, since it uses as much as digits as its factorization.

26976523069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 26976523069 in words is "twenty-six billion, nine hundred seventy-six million, five hundred twenty-three thousand, sixty-nine".