378864244755 has 40 divisors (see below), whose sum is σ = 681991041600. Its totient is φ = 201215435904.

The previous prime is 378864244721. The next prime is 378864244757. The reversal of 378864244755 is 557442468873.

378864244755 is a `hidden beast` number, since 3 + 7 + 88 + 64 + 2 + 447 + 55 = 666.

It is not a de Polignac number, because 378864244755 - 2¹⁴ = 378864228371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378864244692 and 378864244701.

It is not an unprimeable number, because it can be changed into a prime (378864244757) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1860250 + ... + 2053839.

It is an arithmetic number, because the mean of its divisors is an integer number (17049776040).

Almost surely, 2^378864244755 is an apocalyptic number.

378864244755 is a deficient number, since it is larger than the sum of its proper divisors (303126796845).

378864244755 is a wasteful number, since it uses less digits than its factorization.

378864244755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914345 (or 3914336 counting only the distinct ones).

The product of its digits is 180633600, while the sum is 63.

The spelling of 378864244755 in words is "three hundred seventy-eight billion, eight hundred sixty-four million, two hundred forty-four thousand, seven hundred fifty-five".