1223833786560 has 1792 divisors, whose sum is σ = 5584014028800. Its totient is φ = 244983398400.

The previous prime is 1223833786541. The next prime is 1223833786577. The reversal of 1223833786560 is 656873383221.

It is a happy number.

1223833786560 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 8 + 3 + 3 + 78 + 6 + 560 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1223833786497 and 1223833786506.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2150849956 + ... + 2150850524.

Almost surely, 2^{1223833786560} is an apocalyptic number.

1223833786560 is a gapful number since it is divisible by the number (10) 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 1223833786560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2792007014400).

1223833786560 is an abundant number, since it is smaller than the sum of its proper divisors (4360180242240).

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

1223833786560 is a wasteful number, since it uses less digits than its factorization.

1223833786560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 1223833786560 in words is "one trillion, two hundred twenty-three billion, eight hundred thirty-three million, seven hundred eighty-six thousand, five hundred sixty".