378133719 has 4 divisors (see below), whose sum is σ = 504178296. Its totient is φ = 252089144.

The previous prime is 378133711. The next prime is 378133751. The reversal of 378133719 is 917331873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917331873 = 3 ⋅305777291.

It is a cyclic number.

It is not a de Polignac number, because 378133719 - 2³ = 378133711 is a prime.

It is a super-2 number, since 2×378133719² = 285970218889541922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378133711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63022284 + ... + 63022289.

It is an arithmetic number, because the mean of its divisors is an integer number (126044574).

Almost surely, 2^378133719 is an apocalyptic number.

378133719 is a deficient number, since it is larger than the sum of its proper divisors (126044577).

378133719 is a wasteful number, since it uses less digits than its factorization.

378133719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126044576.

The product of its digits is 95256, while the sum is 42.

The square root of 378133719 is about 19445.6606727568. The cubic root of 378133719 is about 723.1279289399.

The spelling of 378133719 in words is "three hundred seventy-eight million, one hundred thirty-three thousand, seven hundred nineteen".