1934811643 has 2 divisors, whose sum is σ = 1934811644. Its totient is φ = 1934811642.

The previous prime is 1934811631. The next prime is 1934811713. The reversal of 1934811643 is 3461184391.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1934811643 - 2²¹ = 1932714491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1934811596 and 1934811605.

It is not a weakly prime, because it can be changed into another prime (1934821643) 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, 967405821 + 967405822.

It is an arithmetic number, because the mean of its divisors is an integer number (967405822).

Almost surely, 2^1934811643 is an apocalyptic number.

1934811643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1934811643 is an equidigital number, since it uses as much as digits as its factorization.

1934811643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 1934811643 is about 43986.4938702780. The cubic root of 1934811643 is about 1246.0808757204.

The spelling of 1934811643 in words is "one billion, nine hundred thirty-four million, eight hundred eleven thousand, six hundred forty-three".