1838963948903 has 2 divisors, whose sum is σ = 1838963948904. Its totient is φ = 1838963948902.

The previous prime is 1838963948897. The next prime is 1838963948933. The reversal of 1838963948903 is 3098493698381.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1838963948903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1838963948933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919481974451 + 919481974452.

It is an arithmetic number, because the mean of its divisors is an integer number (919481974452).

Almost surely, 2^{1838963948903} is an apocalyptic number.

1838963948903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838963948903 is an equidigital number, since it uses as much as digits as its factorization.

1838963948903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241864704, while the sum is 71.

The spelling of 1838963948903 in words is "one trillion, eight hundred thirty-eight billion, nine hundred sixty-three million, nine hundred forty-eight thousand, nine hundred three".