378241853481 has 12 divisors (see below), whose sum is σ = 578487540852. Its totient is φ = 237328221696.

The previous prime is 378241853453. The next prime is 378241853513. The reversal of 378241853481 is 184358142873.

378241853481 is a `hidden beast` number, since 3 + 7 + 8 + 24 + 1 + 8 + 534 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 117728589456 + 260513264025 = 343116^2 + 510405^2 .

It is not a de Polignac number, because 378241853481 - 2⁹ = 378241852969 is a prime.

It is a super-2 number, since 2×378241853481² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (378241853401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1236084336 + ... + 1236084641.

It is an arithmetic number, because the mean of its divisors is an integer number (48207295071).

Almost surely, 2^378241853481 is an apocalyptic number.

It is an amenable number.

378241853481 is a deficient number, since it is larger than the sum of its proper divisors (200245687371).

378241853481 is a wasteful number, since it uses less digits than its factorization.

378241853481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472169000 (or 2472168997 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 378241853481 in words is "three hundred seventy-eight billion, two hundred forty-one million, eight hundred fifty-three thousand, four hundred eighty-one".