9646485638 has 8 divisors (see below), whose sum is σ = 14487355440. Its totient is φ = 4817367160.

The previous prime is 9646485571. The next prime is 9646485671. The reversal of 9646485638 is 8365846469.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2935778 + ... + 2939061.

It is an arithmetic number, because the mean of its divisors is an integer number (1810919430).

Almost surely, 2^9646485638 is an apocalyptic number.

9646485638 is a deficient number, since it is larger than the sum of its proper divisors (4840869802).

9646485638 is a wasteful number, since it uses less digits than its factorization.

9646485638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5875662.

The product of its digits is 29859840, while the sum is 59.

The square root of 9646485638 is about 98216.5242614500. The cubic root of 9646485638 is about 2128.7420579646.

The spelling of 9646485638 in words is "nine billion, six hundred forty-six million, four hundred eighty-five thousand, six hundred thirty-eight".