26234370989 has 2 divisors, whose sum is σ = 26234370990. Its totient is φ = 26234370988.

The previous prime is 26234370971. The next prime is 26234371003. The reversal of 26234370989 is 98907343262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26192832964 + 41538025 = 161842^2 + 6445^2 .

It is a cyclic number.

It is not a de Polignac number, because 26234370989 - 2³² = 21939403693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26234370989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26234370689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13117185494 + 13117185495.

It is an arithmetic number, because the mean of its divisors is an integer number (13117185495).

Almost surely, 2^26234370989 is an apocalyptic number.

It is an amenable number.

26234370989 is a deficient number, since it is larger than the sum of its proper divisors (1).

26234370989 is an equidigital number, since it uses as much as digits as its factorization.

26234370989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 26234370989 in words is "twenty-six billion, two hundred thirty-four million, three hundred seventy thousand, nine hundred eighty-nine".