8648720442 has 24 divisors (see below), whose sum is σ = 19343376000. Its totient is φ = 2789909640.

The previous prime is 8648720407. The next prime is 8648720461. The reversal of 8648720442 is 2440278468.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7749192 + ... + 7750307.

It is an arithmetic number, because the mean of its divisors is an integer number (805974000).

Almost surely, 2^8648720442 is an apocalyptic number.

8648720442 is an abundant number, since it is smaller than the sum of its proper divisors (10694655558).

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

8648720442 is a wasteful number, since it uses less digits than its factorization.

8648720442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15499538 (or 15499535 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 45.

The square root of 8648720442 is about 92998.4969878546. The cubic root of 8648720442 is about 2052.6612624942.

It can be divided in two parts, 86487 and 20442, that added together give a square (106929 = 327²).

The spelling of 8648720442 in words is "eight billion, six hundred forty-eight million, seven hundred twenty thousand, four hundred forty-two".