26342984819 has 2 divisors, whose sum is σ = 26342984820. Its totient is φ = 26342984818.

The previous prime is 26342984813. The next prime is 26342984839. The reversal of 26342984819 is 91848924362.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26342984819 is a prime.

It is a super-2 number, since 2×26342984819² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (26342984813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13171492409 + 13171492410.

It is an arithmetic number, because the mean of its divisors is an integer number (13171492410).

Almost surely, 2^26342984819 is an apocalyptic number.

26342984819 is a deficient number, since it is larger than the sum of its proper divisors (1).

26342984819 is an equidigital number, since it uses as much as digits as its factorization.

26342984819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5971968, while the sum is 56.

The spelling of 26342984819 in words is "twenty-six billion, three hundred forty-two million, nine hundred eighty-four thousand, eight hundred nineteen".