26992826813 has 2 divisors, whose sum is σ = 26992826814. Its totient is φ = 26992826812.

The previous prime is 26992826759. The next prime is 26992826849. The reversal of 26992826813 is 31862829962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26418601444 + 574225369 = 162538^2 + 23963^2 .

It is a cyclic number.

It is not a de Polignac number, because 26992826813 - 2¹⁶ = 26992761277 is a prime.

It is a super-2 number, since 2×26992826813² (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 (26992826213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13496413406 + 13496413407.

It is an arithmetic number, because the mean of its divisors is an integer number (13496413407).

Almost surely, 2^26992826813 is an apocalyptic number.

It is an amenable number.

26992826813 is a deficient number, since it is larger than the sum of its proper divisors (1).

26992826813 is an equidigital number, since it uses as much as digits as its factorization.

26992826813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4478976, while the sum is 56.

The spelling of 26992826813 in words is "twenty-six billion, nine hundred ninety-two million, eight hundred twenty-six thousand, eight hundred thirteen".