612418669 has 2 divisors, whose sum is σ = 612418670. Its totient is φ = 612418668.

The previous prime is 612418661. The next prime is 612418687. The reversal of 612418669 is 966814216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491198569 + 121220100 = 22163^2 + 11010^2 .

It is a cyclic number.

It is not a de Polignac number, because 612418669 - 2³ = 612418661 is a prime.

It is a super-2 number, since 2×612418669² = 750113252279463122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612418661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306209334 + 306209335.

It is an arithmetic number, because the mean of its divisors is an integer number (306209335).

Almost surely, 2^612418669 is an apocalyptic number.

It is an amenable number.

612418669 is a deficient number, since it is larger than the sum of its proper divisors (1).

612418669 is an equidigital number, since it uses as much as digits as its factorization.

612418669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 43.

The square root of 612418669 is about 24747.0941526475. The cubic root of 612418669 is about 849.2120351665.

The spelling of 612418669 in words is "six hundred twelve million, four hundred eighteen thousand, six hundred sixty-nine".