1938468575 has 6 divisors (see below), whose sum is σ = 2403701064. Its totient is φ = 1550774840.

The previous prime is 1938468527. The next prime is 1938468601. The reversal of 1938468575 is 5758648391.

It is a de Polignac number, because none of the positive numbers 2^k-1938468575 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1938468575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38769347 + ... + 38769396.

It is an arithmetic number, because the mean of its divisors is an integer number (400616844).

Almost surely, 2^1938468575 is an apocalyptic number.

1938468575 is a deficient number, since it is larger than the sum of its proper divisors (465232489).

1938468575 is an equidigital number, since it uses as much as digits as its factorization.

1938468575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77538753 (or 77538748 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 56.

The square root of 1938468575 is about 44028.0430521276. The cubic root of 1938468575 is about 1246.8654422083.

The spelling of 1938468575 in words is "one billion, nine hundred thirty-eight million, four hundred sixty-eight thousand, five hundred seventy-five".