8720919242 has 16 divisors (see below), whose sum is σ = 14951950272. Its totient is φ = 3737086080.

The previous prime is 8720919241. The next prime is 8720919253. The reversal of 8720919242 is 2429190278.

8720919242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 8720919193 and 8720919202.

It is not an unprimeable number, because it can be changed into a prime (8720919241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100058 + ... + 165690.

It is an arithmetic number, because the mean of its divisors is an integer number (934496892).

Almost surely, 2^8720919242 is an apocalyptic number.

8720919242 is a deficient number, since it is larger than the sum of its proper divisors (6231031030).

8720919242 is a wasteful number, since it uses less digits than its factorization.

8720919242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75133.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 8720919242 is about 93385.8621098504. The cubic root of 8720919242 is about 2058.3572571291.

The spelling of 8720919242 in words is "eight billion, seven hundred twenty million, nine hundred nineteen thousand, two hundred forty-two".