378199170441 has 21 divisors (see below), whose sum is σ = 567064256151. Its totient is φ = 252121710672.

The previous prime is 378199170431. The next prime is 378199170449. The reversal of 378199170441 is 144071991873.

It is a happy number.

The square root of 378199170441 is 614979.

It is a perfect power (a square), and thus also a powerful number.

378199170441 is a `hidden beast` number, since 3 + 7 + 8 + 199 + 1 + 7 + 0 + 441 = 666.

It can be written as a sum of positive squares in only one way, i.e., 340910015625 + 37289154816 = 583875^2 + 193104^2 .

It is not a de Polignac number, because 378199170441 - 2¹³ = 378199162249 is a prime.

It is a super-2 number, since 2×378199170441² (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 (378199170449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 16593045 + ... + 16615821.

Almost surely, 2^378199170441 is an apocalyptic number.

378199170441 is the 614979-th square number.

378199170441 is the 307490-th centered octagonal number.

It is an amenable number.

378199170441 is a deficient number, since it is larger than the sum of its proper divisors (188865085710).

378199170441 is an frugal number, since it uses more digits than its factorization.

378199170441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45572 (or 22780 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 378199170441 in words is "three hundred seventy-eight billion, one hundred ninety-nine million, one hundred seventy thousand, four hundred forty-one".