39648840004 has 12 divisors (see below), whose sum is σ = 69387857644. Its totient is φ = 19823737824.

The previous prime is 39648840001. The next prime is 39648840017. The reversal of 39648840004 is 40004884693.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30737102400 + 8911737604 = 175320^2 + 94402^2 .

It is not an unprimeable number, because it can be changed into a prime (39648840001) 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, 26199 + ... + 282814.

Almost surely, 2^39648840004 is an apocalyptic number.

It is an amenable number.

39648840004 is a deficient number, since it is larger than the sum of its proper divisors (29739017640).

39648840004 is a wasteful number, since it uses less digits than its factorization.

39648840004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341094 (or 341092 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 39648840004 in words is "thirty-nine billion, six hundred forty-eight million, eight hundred forty thousand, four".