8480342721 has 16 divisors (see below), whose sum is σ = 11347329024. Its totient is φ = 5633488464.

The previous prime is 8480342701. The next prime is 8480342723. The reversal of 8480342721 is 1272430848.

It is not a de Polignac number, because 8480342721 - 2¹⁰ = 8480341697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8480342721.

It is not an unprimeable number, because it can be changed into a prime (8480342723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1498920 + ... + 1504566.

It is an arithmetic number, because the mean of its divisors is an integer number (709208064).

Almost surely, 2^8480342721 is an apocalyptic number.

It is an amenable number.

8480342721 is a deficient number, since it is larger than the sum of its proper divisors (2866986303).

8480342721 is a wasteful number, since it uses less digits than its factorization.

8480342721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7340.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 8480342721 is about 92088.7763030870. The cubic root of 8480342721 is about 2039.2531163868.

The spelling of 8480342721 in words is "eight billion, four hundred eighty million, three hundred forty-two thousand, seven hundred twenty-one".