1938119897 has 8 divisors (see below), whose sum is σ = 2269018752. Its totient is φ = 1620727200.

The previous prime is 1938119891. The next prime is 1938119917. The reversal of 1938119897 is 7989118391.

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 1938119897 - 2⁸ = 1938119641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1938119891) 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 in 7 ways as a sum of consecutive naturals, for example, 3376229 + ... + 3376802.

It is an arithmetic number, because the mean of its divisors is an integer number (283627344).

Almost surely, 2^1938119897 is an apocalyptic number.

It is an amenable number.

1938119897 is a deficient number, since it is larger than the sum of its proper divisors (330898855).

1938119897 is an equidigital number, since it uses as much as digits as its factorization.

1938119897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6753079.

The product of its digits is 979776, while the sum is 56.

The square root of 1938119897 is about 44024.0831477499. The cubic root of 1938119897 is about 1246.7906786168.

The spelling of 1938119897 in words is "one billion, nine hundred thirty-eight million, one hundred nineteen thousand, eight hundred ninety-seven".