9638286466 has 16 divisors (see below), whose sum is σ = 14659288056. Its totient is φ = 4752216576.

The previous prime is 9638286461. The next prime is 9638286481. The reversal of 9638286466 is 6646828369.

It can be written as a sum of positive squares in 4 ways, for example, as 8724494025 + 913792441 = 93405^2 + 30229^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9638286466.

It is not an unprimeable number, because it can be changed into a prime (9638286461) 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, 35941 + ... + 143416.

Almost surely, 2^9638286466 is an apocalyptic number.

9638286466 is a deficient number, since it is larger than the sum of its proper divisors (5021001590).

9638286466 is a wasteful number, since it uses less digits than its factorization.

9638286466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179733.

The product of its digits is 17915904, while the sum is 58.

The square root of 9638286466 is about 98174.7751003281. The cubic root of 9638286466 is about 2128.1387684924.

The spelling of 9638286466 in words is "nine billion, six hundred thirty-eight million, two hundred eighty-six thousand, four hundred sixty-six".