8378219452 has 6 divisors (see below), whose sum is σ = 14661884048. Its totient is φ = 4189109724.

The previous prime is 8378219413. The next prime is 8378219477. The reversal of 8378219452 is 2549128738.

It is a super-2 number, since 2×8378219452² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8378219396 and 8378219405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1047277428 + ... + 1047277435.

Almost surely, 2^8378219452 is an apocalyptic number.

It is an amenable number.

8378219452 is a deficient number, since it is larger than the sum of its proper divisors (6283664596).

8378219452 is a wasteful number, since it uses less digits than its factorization.

8378219452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094554867 (or 2094554865 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 8378219452 is about 91532.6141438121. The cubic root of 8378219452 is about 2031.0342349789.

The spelling of 8378219452 in words is "eight billion, three hundred seventy-eight million, two hundred nineteen thousand, four hundred fifty-two".