1379849811 has 8 divisors (see below), whose sum is σ = 1842873600. Its totient is φ = 918362952.

The previous prime is 1379849789. The next prime is 1379849909. The reversal of 1379849811 is 1189489731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1379849811 - 2⁷ = 1379849683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1379849111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382135 + ... + 385728.

It is an arithmetic number, because the mean of its divisors is an integer number (230359200).

Almost surely, 2^1379849811 is an apocalyptic number.

1379849811 is a deficient number, since it is larger than the sum of its proper divisors (463023789).

1379849811 is an equidigital number, since it uses as much as digits as its factorization.

1379849811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768465.

The product of its digits is 435456, while the sum is 51.

The square root of 1379849811 is about 37146.3297110226. The cubic root of 1379849811 is about 1113.2958909584.

The spelling of 1379849811 in words is "one billion, three hundred seventy-nine million, eight hundred forty-nine thousand, eight hundred eleven".