26425781249 has 16 divisors (see below), whose sum is σ = 30522915072. Its totient is φ = 22409569728.

The previous prime is 26425781243. The next prime is 26425781293. The reversal of 26425781249 is 94218752462.

It is not a de Polignac number, because 26425781249 - 2¹⁶ = 26425715713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26425781197 and 26425781206.

It is not an unprimeable number, because it can be changed into a prime (26425781243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771287 + ... + 804819.

It is an arithmetic number, because the mean of its divisors is an integer number (1907682192).

Almost surely, 2^26425781249 is an apocalyptic number.

It is an amenable number.

26425781249 is a deficient number, since it is larger than the sum of its proper divisors (4097133823).

26425781249 is a wasteful number, since it uses less digits than its factorization.

26425781249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34736.

The product of its digits is 1935360, while the sum is 50.

The spelling of 26425781249 in words is "twenty-six billion, four hundred twenty-five million, seven hundred eighty-one thousand, two hundred forty-nine".