26450422216 has 32 divisors (see below), whose sum is σ = 50178843000. Its totient is φ = 13070025216.

The previous prime is 26450422181. The next prime is 26450422217. The reversal of 26450422216 is 61222405462.

It can be written as a sum of positive squares in 4 ways, for example, as 22996509316 + 3453912900 = 151646^2 + 58770^2 .

It is not an unprimeable number, because it can be changed into a prime (26450422217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300220 + ... + 378196.

Almost surely, 2^26450422216 is an apocalyptic number.

It is an amenable number.

26450422216 is a deficient number, since it is larger than the sum of its proper divisors (23728420784).

26450422216 is a wasteful number, since it uses less digits than its factorization.

26450422216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78481 (or 78477 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 26450422216 its reverse (61222405462), we get a palindrome (87672827678).

The spelling of 26450422216 in words is "twenty-six billion, four hundred fifty million, four hundred twenty-two thousand, two hundred sixteen".