6407264485 has 4 divisors (see below), whose sum is σ = 7688717388. Its totient is φ = 5125811584.

The previous prime is 6407264483. The next prime is 6407264497. The reversal of 6407264485 is 5844627046.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 797554081 + 5609710404 = 28241^2 + 74898^2 .

It is a cyclic number.

It is not a de Polignac number, because 6407264485 - 2¹ = 6407264483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6407264483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640726444 + ... + 640726453.

It is an arithmetic number, because the mean of its divisors is an integer number (1922179347).

Almost surely, 2^6407264485 is an apocalyptic number.

It is an amenable number.

6407264485 is a deficient number, since it is larger than the sum of its proper divisors (1281452903).

6407264485 is a wasteful number, since it uses less digits than its factorization.

6407264485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281452902.

The product of its (nonzero) digits is 1290240, while the sum is 46.

The square root of 6407264485 is about 80045.3901545867. The cubic root of 6407264485 is about 1857.3377418351.

The spelling of 6407264485 in words is "six billion, four hundred seven million, two hundred sixty-four thousand, four hundred eighty-five".