718042519 has 2 divisors, whose sum is σ = 718042520. Its totient is φ = 718042518.

The previous prime is 718042517. The next prime is 718042573. The reversal of 718042519 is 915240817.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 718042519 - 2¹ = 718042517 is a prime.

It is a super-2 number, since 2×718042519² = 1031170118183730722, which contains 22 as substring.

Together with 718042517, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (718042511) 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 as a sum of consecutive naturals, namely, 359021259 + 359021260.

It is an arithmetic number, because the mean of its divisors is an integer number (359021260).

Almost surely, 2^718042519 is an apocalyptic number.

718042519 is a deficient number, since it is larger than the sum of its proper divisors (1).

718042519 is an equidigital number, since it uses as much as digits as its factorization.

718042519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 718042519 is about 26796.3153996963. The cubic root of 718042519 is about 895.4679653798.

The spelling of 718042519 in words is "seven hundred eighteen million, forty-two thousand, five hundred nineteen".