6426765481 has 2 divisors, whose sum is σ = 6426765482. Its totient is φ = 6426765480.

The previous prime is 6426765463. The next prime is 6426765529. The reversal of 6426765481 is 1845676246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4621280400 + 1805485081 = 67980^2 + 42491^2 .

It is a cyclic number.

It is not a de Polignac number, because 6426765481 - 2²¹ = 6424668329 is a prime.

It is a super-3 number, since 3×6426765481³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (6426765581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213382740 + 3213382741.

It is an arithmetic number, because the mean of its divisors is an integer number (3213382741).

Almost surely, 2^6426765481 is an apocalyptic number.

It is an amenable number.

6426765481 is a deficient number, since it is larger than the sum of its proper divisors (1).

6426765481 is an equidigital number, since it uses as much as digits as its factorization.

6426765481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 49.

The square root of 6426765481 is about 80167.1097208824. The cubic root of 6426765481 is about 1859.2201495263.

It can be divided in two parts, 6426765 and 481, that added together give a palindrome (6427246).

The spelling of 6426765481 in words is "six billion, four hundred twenty-six million, seven hundred sixty-five thousand, four hundred eighty-one".