378818955 has 12 divisors (see below), whose sum is σ = 656619600. Its totient is φ = 202036752.

The previous prime is 378818933. The next prime is 378818969. The reversal of 378818955 is 559818873.

It is not a de Polignac number, because 378818955 - 2¹⁰ = 378817931 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4209055 + ... + 4209144.

It is an arithmetic number, because the mean of its divisors is an integer number (54718300).

Almost surely, 2^378818955 is an apocalyptic number.

378818955 is a deficient number, since it is larger than the sum of its proper divisors (277800645).

378818955 is a wasteful number, since it uses less digits than its factorization.

378818955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8418210 (or 8418207 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 54.

The square root of 378818955 is about 19463.2719500088. The cubic root of 378818955 is about 723.5644714030.

The spelling of 378818955 in words is "three hundred seventy-eight million, eight hundred eighteen thousand, nine hundred fifty-five".