1946136811 has 2 divisors, whose sum is σ = 1946136812. Its totient is φ = 1946136810.

The previous prime is 1946136779. The next prime is 1946136847. The reversal of 1946136811 is 1186316491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1946136811 - 2⁵ = 1946136779 is a prime.

It is not a weakly prime, because it can be changed into another prime (1946136911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973068405 + 973068406.

It is an arithmetic number, because the mean of its divisors is an integer number (973068406).

Almost surely, 2^1946136811 is an apocalyptic number.

1946136811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1946136811 is an equidigital number, since it uses as much as digits as its factorization.

1946136811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 1946136811 is about 44115.0406437532. The cubic root of 1946136811 is about 1248.5074047837.

The spelling of 1946136811 in words is "one billion, nine hundred forty-six million, one hundred thirty-six thousand, eight hundred eleven".