4246481521 has 4 divisors (see below), whose sum is σ = 4273529332. Its totient is φ = 4219433712.

The previous prime is 4246481489. The next prime is 4246481539. The reversal of 4246481521 is 1251846424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1361610000 + 2884871521 = 36900^2 + 53711^2 .

It is a cyclic number.

It is not a de Polignac number, because 4246481521 - 2⁵ = 4246481489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4246481021) 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 3 ways as a sum of consecutive naturals, for example, 13523670 + ... + 13523983.

It is an arithmetic number, because the mean of its divisors is an integer number (1068382333).

Almost surely, 2^4246481521 is an apocalyptic number.

It is an amenable number.

4246481521 is a deficient number, since it is larger than the sum of its proper divisors (27047811).

4246481521 is a wasteful number, since it uses less digits than its factorization.

4246481521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27047810.

The product of its digits is 61440, while the sum is 37.

The square root of 4246481521 is about 65165.0329624715. The cubic root of 4246481521 is about 1619.3587769893.

The spelling of 4246481521 in words is "four billion, two hundred forty-six million, four hundred eighty-one thousand, five hundred twenty-one".