381452544000 has 1536 divisors, whose sum is σ = 1600627392000. Its totient is φ = 88768512000.

The previous prime is 381452543947. The next prime is 381452544097. The reversal of 381452544000 is 445254183.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1536).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 2204927914 + ... + 2204928086.

It is an arithmetic number, because the mean of its divisors is an integer number (1042075125).

Almost surely, 2^381452544000 is an apocalyptic number.

381452544000 is a gapful number since it is divisible by the number (30) 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 381452544000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (800313696000).

381452544000 is an abundant number, since it is smaller than the sum of its proper divisors (1219174848000).

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

381452544000 is a wasteful number, since it uses less digits than its factorization.

381452544000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 381452544000 its reverse (445254183), we get a palindrome (381897798183).

The spelling of 381452544000 in words is "three hundred eighty-one billion, four hundred fifty-two million, five hundred forty-four thousand".