4247921519 has 2 divisors, whose sum is σ = 4247921520. Its totient is φ = 4247921518.

The previous prime is 4247921501. The next prime is 4247921549. The reversal of 4247921519 is 9151297424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4247921519 - 2²⁰ = 4246872943 is a prime.

It is a super-2 number, since 2×4247921519² = 36089674463166534722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4247921519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4247921549) 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 as a sum of consecutive naturals, namely, 2123960759 + 2123960760.

It is an arithmetic number, because the mean of its divisors is an integer number (2123960760).

Almost surely, 2^4247921519 is an apocalyptic number.

4247921519 is a deficient number, since it is larger than the sum of its proper divisors (1).

4247921519 is an equidigital number, since it uses as much as digits as its factorization.

4247921519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 4247921519 is about 65176.0808809490. The cubic root of 4247921519 is about 1619.5417998720.

The spelling of 4247921519 in words is "four billion, two hundred forty-seven million, nine hundred twenty-one thousand, five hundred nineteen".