1938452863 has 8 divisors (see below), whose sum is σ = 2081388960. Its totient is φ = 1798728960.

The previous prime is 1938452861. The next prime is 1938452881. The reversal of 1938452863 is 3682548391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1938452863 - 2¹ = 1938452861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938452861) 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 in 7 ways as a sum of consecutive naturals, for example, 801798 + ... + 804211.

It is an arithmetic number, because the mean of its divisors is an integer number (260173620).

Almost surely, 2^1938452863 is an apocalyptic number.

1938452863 is a deficient number, since it is larger than the sum of its proper divisors (142936097).

1938452863 is a wasteful number, since it uses less digits than its factorization.

1938452863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606097.

The product of its digits is 1244160, while the sum is 49.

The square root of 1938452863 is about 44027.8646200335. The cubic root of 1938452863 is about 1246.8620734317.

The spelling of 1938452863 in words is "one billion, nine hundred thirty-eight million, four hundred fifty-two thousand, eight hundred sixty-three".