2819380387 has 2 divisors, whose sum is σ = 2819380388. Its totient is φ = 2819380386.

The previous prime is 2819380381. The next prime is 2819380423. The reversal of 2819380387 is 7830839182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2819380387 - 2³¹ = 671896739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2819380387.

It is not a weakly prime, because it can be changed into another prime (2819380381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1409690193 + 1409690194.

It is an arithmetic number, because the mean of its divisors is an integer number (1409690194).

Almost surely, 2^2819380387 is an apocalyptic number.

2819380387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2819380387 is an equidigital number, since it uses as much as digits as its factorization.

2819380387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 2819380387 is about 53097.8378750020. The cubic root of 2819380387 is about 1412.7041623286.

The spelling of 2819380387 in words is "two billion, eight hundred nineteen million, three hundred eighty thousand, three hundred eighty-seven".