1380819563 has 2 divisors, whose sum is σ = 1380819564. Its totient is φ = 1380819562.

The previous prime is 1380819499. The next prime is 1380819593. The reversal of 1380819563 is 3659180831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1380819563 - 2⁶ = 1380819499 is a prime.

It is not a weakly prime, because it can be changed into another prime (1380819593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690409781 + 690409782.

It is an arithmetic number, because the mean of its divisors is an integer number (690409782).

Almost surely, 2^1380819563 is an apocalyptic number.

1380819563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380819563 is an equidigital number, since it uses as much as digits as its factorization.

1380819563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1380819563 is about 37159.3805518876. The cubic root of 1380819563 is about 1113.5566362678.

The spelling of 1380819563 in words is "one billion, three hundred eighty million, eight hundred nineteen thousand, five hundred sixty-three".