378164715 has 16 divisors (see below), whose sum is σ = 605307168. Its totient is φ = 201606656.

The previous prime is 378164713. The next prime is 378164719. The reversal of 378164715 is 517461873.

It is a cyclic number.

It is not a de Polignac number, because 378164715 - 2¹ = 378164713 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (378164713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62149 + ... + 67961.

It is an arithmetic number, because the mean of its divisors is an integer number (37831698).

Almost surely, 2^378164715 is an apocalyptic number.

378164715 is a deficient number, since it is larger than the sum of its proper divisors (227142453).

378164715 is a wasteful number, since it uses less digits than its factorization.

378164715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10158.

The product of its digits is 141120, while the sum is 42.

The square root of 378164715 is about 19446.4576465741. The cubic root of 378164715 is about 723.1476869071.

The spelling of 378164715 in words is "three hundred seventy-eight million, one hundred sixty-four thousand, seven hundred fifteen".