69680519 has 2 divisors, whose sum is σ = 69680520. Its totient is φ = 69680518.

The previous prime is 69680497. The next prime is 69680521. The reversal of 69680519 is 91508696.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69680519 is a prime.

It is a super-2 number, since 2×69680519² = 9710749456218722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 69680521, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69680519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69680579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34840259 + 34840260.

It is an arithmetic number, because the mean of its divisors is an integer number (34840260).

Almost surely, 2^69680519 is an apocalyptic number.

69680519 is a deficient number, since it is larger than the sum of its proper divisors (1).

69680519 is an equidigital number, since it uses as much as digits as its factorization.

69680519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 69680519 is about 8347.4857891463. The cubic root of 69680519 is about 411.5005868632.

The spelling of 69680519 in words is "sixty-nine million, six hundred eighty thousand, five hundred nineteen".