518769061 has 2 divisors, whose sum is σ = 518769062. Its totient is φ = 518769060.

The previous prime is 518769047. The next prime is 518769077. The reversal of 518769061 is 160967815.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 394022500 + 124746561 = 19850^2 + 11169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-518769061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 518768999 and 518769017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (518769011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259384530 + 259384531.

It is an arithmetic number, because the mean of its divisors is an integer number (259384531).

Almost surely, 2^518769061 is an apocalyptic number.

It is an amenable number.

518769061 is a deficient number, since it is larger than the sum of its proper divisors (1).

518769061 is an equidigital number, since it uses as much as digits as its factorization.

518769061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 518769061 is about 22776.5023873289. The cubic root of 518769061 is about 803.5101288236.

The spelling of 518769061 in words is "five hundred eighteen million, seven hundred sixty-nine thousand, sixty-one".