6412406641 has 4 divisors (see below), whose sum is σ = 6447834484. Its totient is φ = 6376978800.

The previous prime is 6412406621. The next prime is 6412406669. The reversal of 6412406641 is 1466042146.

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 647193600 + 5765213041 = 25440^2 + 75929^2 .

It is a cyclic number.

It is not a de Polignac number, because 6412406641 - 2¹³ = 6412398449 is a prime.

It is a super-2 number, since 2×6412406641² = 82237917859081805762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6412406597 and 6412406606.

It is not an unprimeable number, because it can be changed into a prime (6412406621) 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, 17713650 + ... + 17714011.

It is an arithmetic number, because the mean of its divisors is an integer number (1611958621).

Almost surely, 2^6412406641 is an apocalyptic number.

It is an amenable number.

6412406641 is a deficient number, since it is larger than the sum of its proper divisors (35427843).

6412406641 is a wasteful number, since it uses less digits than its factorization.

6412406641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35427842.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 6412406641 is about 80077.5039633479. The cubic root of 6412406641 is about 1857.8344783438.

Adding to 6412406641 its reverse (1466042146), we get a palindrome (7878448787).

The spelling of 6412406641 in words is "six billion, four hundred twelve million, four hundred six thousand, six hundred forty-one".