6436061264 has 20 divisors (see below), whose sum is σ = 12774013140. Its totient is φ = 3139541760.

The previous prime is 6436061243. The next prime is 6436061267. The reversal of 6436061264 is 4621606346.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 858958864 + 5577102400 = 29308^2 + 74680^2 .

It is a super-2 number, since 2×6436061264² = 82845769187922555392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6436061267) 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, 4904879 + ... + 4906190.

It is an arithmetic number, because the mean of its divisors is an integer number (638700657).

Almost surely, 2^6436061264 is an apocalyptic number.

It is an amenable number.

6436061264 is a deficient number, since it is larger than the sum of its proper divisors (6337951876).

6436061264 is a wasteful number, since it uses less digits than its factorization.

6436061264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9811118 (or 9811112 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 6436061264 is about 80225.0663072334. The cubic root of 6436061264 is about 1860.1161202411.

The spelling of 6436061264 in words is "six billion, four hundred thirty-six million, sixty-one thousand, two hundred sixty-four".