378678351 has 4 divisors (see below), whose sum is σ = 504904472. Its totient is φ = 252452232.

The previous prime is 378678347. The next prime is 378678353. The reversal of 378678351 is 153876873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153876873 = 3 ⋅51292291.

It is not a de Polignac number, because 378678351 - 2² = 378678347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 378678351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378678353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63113056 + ... + 63113061.

It is an arithmetic number, because the mean of its divisors is an integer number (126226118).

Almost surely, 2^378678351 is an apocalyptic number.

378678351 is a deficient number, since it is larger than the sum of its proper divisors (126226121).

378678351 is a wasteful number, since it uses less digits than its factorization.

378678351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126226120.

The product of its digits is 846720, while the sum is 48.

The square root of 378678351 is about 19459.6595807840. The cubic root of 378678351 is about 723.4749399376.

The spelling of 378678351 in words is "three hundred seventy-eight million, six hundred seventy-eight thousand, three hundred fifty-one".