618815467 has 2 divisors, whose sum is σ = 618815468. Its totient is φ = 618815466.

The previous prime is 618815447. The next prime is 618815471. The reversal of 618815467 is 764518816.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-618815467 is a prime.

It is not a weakly prime, because it can be changed into another prime (618815447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309407733 + 309407734.

It is an arithmetic number, because the mean of its divisors is an integer number (309407734).

Almost surely, 2^618815467 is an apocalyptic number.

618815467 is a deficient number, since it is larger than the sum of its proper divisors (1).

618815467 is an equidigital number, since it uses as much as digits as its factorization.

618815467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 46.

The square root of 618815467 is about 24876.0018290721. The cubic root of 618815467 is about 852.1585125918.

The spelling of 618815467 in words is "six hundred eighteen million, eight hundred fifteen thousand, four hundred sixty-seven".