1338550771712 has 672 divisors, whose sum is σ = 3569973657600. Its totient is φ = 500716339200.

The previous prime is 1338550771703. The next prime is 1338550771717. The reversal of 1338550771712 is 2171770558331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338550771717) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10539769793 + ... + 10539769919.

It is an arithmetic number, because the mean of its divisors is an integer number (5312460800).

Almost surely, 2^{1338550771712} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1338550771712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1784986828800).

1338550771712 is an abundant number, since it is smaller than the sum of its proper divisors (2231422885888).

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

1338550771712 is an equidigital number, since it uses as much as digits as its factorization.

1338550771712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 50.

The spelling of 1338550771712 in words is "one trillion, three hundred thirty-eight billion, five hundred fifty million, seven hundred seventy-one thousand, seven hundred twelve".