2819609231 has 2 divisors, whose sum is σ = 2819609232. Its totient is φ = 2819609230.

The previous prime is 2819609213. The next prime is 2819609263. The reversal of 2819609231 is 1329069182.

2819609231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (2819609213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2819609231 is a prime.

It is a super-2 number, since 2×2819609231² = 15900392431080822722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2819602231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1409804615 + 1409804616.

It is an arithmetic number, because the mean of its divisors is an integer number (1409804616).

Almost surely, 2^2819609231 is an apocalyptic number.

2819609231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2819609231 is an equidigital number, since it uses as much as digits as its factorization.

2819609231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 2819609231 is about 53099.9927589449. The cubic root of 2819609231 is about 1412.7423835073.

The spelling of 2819609231 in words is "two billion, eight hundred nineteen million, six hundred nine thousand, two hundred thirty-one".