381450218754 has 128 divisors (see below), whose sum is σ = 893580532992. Its totient is φ = 107272765440.

The previous prime is 381450218741. The next prime is 381450218759. The reversal of 381450218754 is 457812054183.

It is not an unprimeable number, because it can be changed into a prime (381450218759) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30140692 + ... + 30153344.

It is an arithmetic number, because the mean of its divisors is an integer number (6981097914).

Almost surely, 2^381450218754 is an apocalyptic number.

381450218754 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 381450218754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446790266496).

381450218754 is an abundant number, since it is smaller than the sum of its proper divisors (512130314238).

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

381450218754 is a wasteful number, since it uses less digits than its factorization.

381450218754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13060.

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 381450218754 in words is "three hundred eighty-one billion, four hundred fifty million, two hundred eighteen thousand, seven hundred fifty-four".