4509920638608 has 80 divisors (see below), whose sum is σ = 14525458692096. Its totient is φ = 1171407957120.

The previous prime is 4509920638589. The next prime is 4509920638709. The reversal of 4509920638608 is 8068360299054.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610104616 + ... + 610112007.

Almost surely, 2^{4509920638608} is an apocalyptic number.

4509920638608 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4509920638608 is an abundant number, since it is smaller than the sum of its proper divisors (10015538053488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4509920638608 is a wasteful number, since it uses less digits than its factorization.

4509920638608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220216652 (or 1220216646 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 60.

The spelling of 4509920638608 in words is "four trillion, five hundred nine billion, nine hundred twenty million, six hundred thirty-eight thousand, six hundred eight".