1389226223616 has 576 divisors, whose sum is σ = 4947651072000. Its totient is φ = 341831024640.

The previous prime is 1389226223603. The next prime is 1389226223629. The reversal of 1389226223616 is 6163226229831.

It is an interprime number because it is at equal distance from previous prime (1389226223603) and next prime (1389226223629).

It is a super-2 number, since 2×1389226223616² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62909665 + ... + 62931743.

It is an arithmetic number, because the mean of its divisors is an integer number (8589672000).

Almost surely, 2^{1389226223616} is an apocalyptic number.

1389226223616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1389226223616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2473825536000).

1389226223616 is an abundant number, since it is smaller than the sum of its proper divisors (3558424848384).

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

1389226223616 is a wasteful number, since it uses less digits than its factorization.

1389226223616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22148 (or 22121 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 51.

The spelling of 1389226223616 in words is "one trillion, three hundred eighty-nine billion, two hundred twenty-six million, two hundred twenty-three thousand, six hundred sixteen".