1238785228800 has 1728 divisors, whose sum is σ = 5395369674240. Its totient is φ = 280921374720.

The previous prime is 1238785228789. The next prime is 1238785228853. The reversal of 1238785228800 is 88225878321.

1238785228800 is a `hidden beast` number, since 1 + 2 + 38 + 7 + 8 + 522 + 8 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

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

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 9754214337 + ... + 9754214463.

Almost surely, 2^{1238785228800} is an apocalyptic number.

1238785228800 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 1238785228800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2697684837120).

1238785228800 is an abundant number, since it is smaller than the sum of its proper divisors (4156584445440).

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

1238785228800 is an frugal number, since it uses more digits than its factorization.

1238785228800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 54.

The spelling of 1238785228800 in words is "one trillion, two hundred thirty-eight billion, seven hundred eighty-five million, two hundred twenty-eight thousand, eight hundred".