8742320519 has 2 divisors, whose sum is σ = 8742320520. Its totient is φ = 8742320518.

The previous prime is 8742320491. The next prime is 8742320621. The reversal of 8742320519 is 9150232478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8742320519 - 2²⁰ = 8741271943 is a prime.

It is a super-2 number, since 2×8742320519² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8742320219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4371160259 + 4371160260.

It is an arithmetic number, because the mean of its divisors is an integer number (4371160260).

Almost surely, 2^8742320519 is an apocalyptic number.

8742320519 is a deficient number, since it is larger than the sum of its proper divisors (1).

8742320519 is an equidigital number, since it uses as much as digits as its factorization.

8742320519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 8742320519 is about 93500.3771061914. The cubic root of 8742320519 is about 2060.0396290331.

The spelling of 8742320519 in words is "eight billion, seven hundred forty-two million, three hundred twenty thousand, five hundred nineteen".