1323608939856 has 640 divisors, whose sum is σ = 4617990144000. Its totient is φ = 362419868160.

The previous prime is 1323608939843. The next prime is 1323608939869. The reversal of 1323608939856 is 6589398063231.

1323608939856 is a `hidden beast` number, since 1 + 3 + 236 + 0 + 8 + 9 + 398 + 5 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (1323608939843) and next prime (1323608939869).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 1323608939793 and 1323608939802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 491498446 + ... + 491501138.

It is an arithmetic number, because the mean of its divisors is an integer number (7215609600).

Almost surely, 2^{1323608939856} is an apocalyptic number.

1323608939856 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 1323608939856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2308995072000).

1323608939856 is an abundant number, since it is smaller than the sum of its proper divisors (3294381204144).

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

1323608939856 is a wasteful number, since it uses less digits than its factorization.

1323608939856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869 (or 2843 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 63.

The spelling of 1323608939856 in words is "one trillion, three hundred twenty-three billion, six hundred eight million, nine hundred thirty-nine thousand, eight hundred fifty-six".