2606231819 has 2 divisors, whose sum is σ = 2606231820. Its totient is φ = 2606231818.

The previous prime is 2606231809. The next prime is 2606231857. The reversal of 2606231819 is 9181326062.

It is a happy number.

It is an a-pointer prime, because the next prime (2606231857) can be obtained adding 2606231819 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2606231819 is a prime.

It is a super-2 number, since 2×2606231819² = 13584888588736097522, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2606231809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1303115909 + 1303115910.

It is an arithmetic number, because the mean of its divisors is an integer number (1303115910).

Almost surely, 2^2606231819 is an apocalyptic number.

2606231819 is a deficient number, since it is larger than the sum of its proper divisors (1).

2606231819 is an equidigital number, since it uses as much as digits as its factorization.

2606231819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 2606231819 is about 51051.2665758647. The cubic root of 2606231819 is about 1376.1666033610.

The spelling of 2606231819 in words is "two billion, six hundred six million, two hundred thirty-one thousand, eight hundred nineteen".