1379875811 has 2 divisors, whose sum is σ = 1379875812. Its totient is φ = 1379875810.

The previous prime is 1379875753. The next prime is 1379875831. The reversal of 1379875811 is 1185789731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1379875811 - 2¹⁰ = 1379874787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1379875811.

It is not a weakly prime, because it can be changed into another prime (1379875831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689937905 + 689937906.

It is an arithmetic number, because the mean of its divisors is an integer number (689937906).

Almost surely, 2^1379875811 is an apocalyptic number.

1379875811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379875811 is an equidigital number, since it uses as much as digits as its factorization.

1379875811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 50.

The square root of 1379875811 is about 37146.6796766548. The cubic root of 1379875811 is about 1113.3028833888.

The spelling of 1379875811 in words is "one billion, three hundred seventy-nine million, eight hundred seventy-five thousand, eight hundred eleven".