1938622963 has 2 divisors, whose sum is σ = 1938622964. Its totient is φ = 1938622962.

The previous prime is 1938622951. The next prime is 1938623017. The reversal of 1938622963 is 3692268391.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1938622963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1938625963) 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 as a sum of consecutive naturals, namely, 969311481 + 969311482.

It is an arithmetic number, because the mean of its divisors is an integer number (969311482).

Almost surely, 2^1938622963 is an apocalyptic number.

1938622963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1938622963 is an equidigital number, since it uses as much as digits as its factorization.

1938622963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 49.

The square root of 1938622963 is about 44029.7963088634. The cubic root of 1938622963 is about 1246.8985432438.

The spelling of 1938622963 in words is "one billion, nine hundred thirty-eight million, six hundred twenty-two thousand, nine hundred sixty-three".