1938834463 has 2 divisors, whose sum is σ = 1938834464. Its totient is φ = 1938834462.

The previous prime is 1938834437. The next prime is 1938834487. The reversal of 1938834463 is 3644388391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1938834463 - 2¹³ = 1938826271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1938834263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969417231 + 969417232.

It is an arithmetic number, because the mean of its divisors is an integer number (969417232).

Almost surely, 2^1938834463 is an apocalyptic number.

1938834463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1938834463 is an equidigital number, since it uses as much as digits as its factorization.

1938834463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 49.

The square root of 1938834463 is about 44032.1980259900. The cubic root of 1938834463 is about 1246.9438863314.

The spelling of 1938834463 in words is "one billion, nine hundred thirty-eight million, eight hundred thirty-four thousand, four hundred sixty-three".