1934811811 has 2 divisors, whose sum is σ = 1934811812. Its totient is φ = 1934811810.

The previous prime is 1934811787. The next prime is 1934811869. The reversal of 1934811811 is 1181184391.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1181184391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1934811811 - 2⁵ = 1934811779 is a prime.

It is not a weakly prime, because it can be changed into another prime (1934815811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 967405905 + 967405906.

It is an arithmetic number, because the mean of its divisors is an integer number (967405906).

Almost surely, 2^1934811811 is an apocalyptic number.

1934811811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1934811811 is an equidigital number, since it uses as much as digits as its factorization.

1934811811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 37.

The square root of 1934811811 is about 43986.4957799550. The cubic root of 1934811811 is about 1246.0809117862.

The spelling of 1934811811 in words is "one billion, nine hundred thirty-four million, eight hundred eleven thousand, eight hundred eleven".