619068869 has 2 divisors, whose sum is σ = 619068870. Its totient is φ = 619068868.

The previous prime is 619068847. The next prime is 619068871. The reversal of 619068869 is 968860916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311522500 + 307546369 = 17650^2 + 17537^2 .

It is a cyclic number.

It is not a de Polignac number, because 619068869 - 2¹² = 619064773 is a prime.

It is a super-2 number, since 2×619068869² = 766492529129878322, which contains 22 as substring.

Together with 619068871, 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 619068869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (619068899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309534434 + 309534435.

It is an arithmetic number, because the mean of its divisors is an integer number (309534435).

Almost surely, 2^619068869 is an apocalyptic number.

It is an amenable number.

619068869 is a deficient number, since it is larger than the sum of its proper divisors (1).

619068869 is an equidigital number, since it uses as much as digits as its factorization.

619068869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 619068869 is about 24881.0946101654. The cubic root of 619068869 is about 852.2748150085.

The spelling of 619068869 in words is "six hundred nineteen million, sixty-eight thousand, eight hundred sixty-nine".