378718963 has 24 divisors (see below), whose sum is σ = 463283808. Its totient is φ = 303170688.

The previous prime is 378718933. The next prime is 378718999. The reversal of 378718963 is 369817873.

It is a happy number.

It is not a de Polignac number, because 378718963 - 2²⁵ = 345164531 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 378718963.

It is not an unprimeable number, because it can be changed into a prime (378718933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183445 + ... + 185497.

It is an arithmetic number, because the mean of its divisors is an integer number (19303492).

Almost surely, 2^378718963 is an apocalyptic number.

378718963 is a deficient number, since it is larger than the sum of its proper divisors (84564845).

378718963 is a wasteful number, since it uses less digits than its factorization.

378718963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171 (or 2152 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 52.

The square root of 378718963 is about 19460.7030448543. The cubic root of 378718963 is about 723.5008024442.

The spelling of 378718963 in words is "three hundred seventy-eight million, seven hundred eighteen thousand, nine hundred sixty-three".