1938127853 has 4 divisors (see below), whose sum is σ = 1938216000. Its totient is φ = 1938039708.

The previous prime is 1938127759. The next prime is 1938127859. The reversal of 1938127853 is 3587218391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1938127853 - 2²⁸ = 1669692397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1938127798 and 1938127807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938127859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18926 + ... + 65072.

It is an arithmetic number, because the mean of its divisors is an integer number (484554000).

Almost surely, 2^1938127853 is an apocalyptic number.

It is an amenable number.

1938127853 is a deficient number, since it is larger than the sum of its proper divisors (88147).

1938127853 is an equidigital number, since it uses as much as digits as its factorization.

1938127853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88146.

The product of its digits is 362880, while the sum is 47.

The square root of 1938127853 is about 44024.1735072903. The cubic root of 1938127853 is about 1246.7923846435.

The spelling of 1938127853 in words is "one billion, nine hundred thirty-eight million, one hundred twenty-seven thousand, eight hundred fifty-three".