6191378338 has 16 divisors (see below), whose sum is σ = 9492142464. Its totient is φ = 3027434800.

The previous prime is 6191378321. The next prime is 6191378341. The reversal of 6191378338 is 8338731916.

It is a junction number, because it is equal to n+sod(n) for n = 6191378291 and 6191378300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96981 + ... + 147607.

It is an arithmetic number, because the mean of its divisors is an integer number (593258904).

Almost surely, 2^6191378338 is an apocalyptic number.

6191378338 is a deficient number, since it is larger than the sum of its proper divisors (3300764126).

6191378338 is a wasteful number, since it uses less digits than its factorization.

6191378338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51977.

The product of its digits is 653184, while the sum is 49.

The square root of 6191378338 is about 78685.3120855475. The cubic root of 6191378338 is about 1836.2386080135.

The spelling of 6191378338 in words is "six billion, one hundred ninety-one million, three hundred seventy-eight thousand, three hundred thirty-eight".