1938538274596 has 81 divisors (see below), whose sum is σ = 4338159483441. Its totient is φ = 755191113600.

The previous prime is 1938538274593. The next prime is 1938538274683. The reversal of 1938538274596 is 6954728358391.

It is a happy number.

The square root of 1938538274596 is 1392314.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1924839912996 + 13698361600 = 1387386^2 + 117040^2 .

It is not an unprimeable number, because it can be changed into a prime (1938538274593) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 214411836 + ... + 214420876.

Almost surely, 2^{1938538274596} is an apocalyptic number.

1938538274596 is the 1392314-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1938538274596

1938538274596 is an abundant number, since it is smaller than the sum of its proper divisors (2399621208845).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1938538274596 is an frugal number, since it uses more digits than its factorization.

1938538274596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18122 (or 9061 counting only the distinct ones).

The product of its digits is 391910400, while the sum is 70.

The spelling of 1938538274596 in words is "one trillion, nine hundred thirty-eight billion, five hundred thirty-eight million, two hundred seventy-four thousand, five hundred ninety-six".