6988189378 has 8 divisors (see below), whose sum is σ = 10638736272. Its totient is φ = 3441943956.

The previous prime is 6988189343. The next prime is 6988189381. The reversal of 6988189378 is 8739818896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26075200 + ... + 26075467.

It is an arithmetic number, because the mean of its divisors is an integer number (1329842034).

Almost surely, 2^6988189378 is an apocalyptic number.

6988189378 is a deficient number, since it is larger than the sum of its proper divisors (3650546894).

6988189378 is a wasteful number, since it uses less digits than its factorization.

6988189378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52150736.

The product of its digits is 41803776, while the sum is 67.

The square root of 6988189378 is about 83595.3908896896. The cubic root of 6988189378 is about 1911.8547244140.

The spelling of 6988189378 in words is "six billion, nine hundred eighty-eight million, one hundred eighty-nine thousand, three hundred seventy-eight".