378846178 has 4 divisors (see below), whose sum is σ = 568269270. Its totient is φ = 189423088.

The previous prime is 378846163. The next prime is 378846199. The reversal of 378846178 is 871648873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 871648873 = 1583 ⋅550631.

It can be written as a sum of positive squares in only one way, i.e., 358079929 + 20766249 = 18923^2 + 4557^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94711543 + ... + 94711546.

Almost surely, 2^378846178 is an apocalyptic number.

378846178 is a deficient number, since it is larger than the sum of its proper divisors (189423092).

378846178 is a wasteful number, since it uses less digits than its factorization.

378846178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189423091.

The product of its digits is 1806336, while the sum is 52.

The square root of 378846178 is about 19463.9712802912. The cubic root of 378846178 is about 723.5818034500.

The spelling of 378846178 in words is "three hundred seventy-eight million, eight hundred forty-six thousand, one hundred seventy-eight".