26400227425 has 48 divisors (see below), whose sum is σ = 40131681408. Its totient is φ = 16952601600.

The previous prime is 26400227387. The next prime is 26400227429. The reversal of 26400227425 is 52472200462.

It is not a de Polignac number, because 26400227425 - 2¹¹ = 26400225377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26400227429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78312 + ... + 242761.

It is an arithmetic number, because the mean of its divisors is an integer number (836076696).

Almost surely, 2^26400227425 is an apocalyptic number.

26400227425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26400227425 is a deficient number, since it is larger than the sum of its proper divisors (13731453983).

26400227425 is a wasteful number, since it uses less digits than its factorization.

26400227425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321130 (or 321125 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

Adding to 26400227425 its reverse (52472200462), we get a palindrome (78872427887).

The spelling of 26400227425 in words is "twenty-six billion, four hundred million, two hundred twenty-seven thousand, four hundred twenty-five".