26793234989 has 2 divisors, whose sum is σ = 26793234990. Its totient is φ = 26793234988.

The previous prime is 26793234973. The next prime is 26793235069. The reversal of 26793234989 is 98943239762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18586686889 + 8206548100 = 136333^2 + 90590^2 .

It is a cyclic number.

It is not a de Polignac number, because 26793234989 - 2⁴ = 26793234973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26793234929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13396617494 + 13396617495.

It is an arithmetic number, because the mean of its divisors is an integer number (13396617495).

Almost surely, 2^26793234989 is an apocalyptic number.

It is an amenable number.

26793234989 is a deficient number, since it is larger than the sum of its proper divisors (1).

26793234989 is an equidigital number, since it uses as much as digits as its factorization.

26793234989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35271936, while the sum is 62.

The spelling of 26793234989 in words is "twenty-six billion, seven hundred ninety-three million, two hundred thirty-four thousand, nine hundred eighty-nine".