8378219934 has 40 divisors (see below), whose sum is σ = 21455338608. Its totient is φ = 2393776800.

The previous prime is 8378219933. The next prime is 8378219957. The reversal of 8378219934 is 4399128738.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8378219933) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3692967 + ... + 3695234.

Almost surely, 2^8378219934 is an apocalyptic number.

8378219934 is an abundant number, since it is smaller than the sum of its proper divisors (13077118674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8378219934 is a wasteful number, since it uses less digits than its factorization.

8378219934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7388222 (or 7388213 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 8378219934 is about 91532.6167767534. The cubic root of 8378219934 is about 2031.0342739275.

The spelling of 8378219934 in words is "eight billion, three hundred seventy-eight million, two hundred nineteen thousand, nine hundred thirty-four".