6198019398 has 80 divisors (see below), whose sum is σ = 14241401856. Its totient is φ = 2013666480.

The previous prime is 6198019351. The next prime is 6198019411. The reversal of 6198019398 is 8939108916.

6198019398 is a `hidden beast` number, since 619 + 8 + 0 + 19 + 3 + 9 + 8 = 666.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6011143 + ... + 6012173.

Almost surely, 2^6198019398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6198019398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7120700928).

6198019398 is an abundant number, since it is smaller than the sum of its proper divisors (8043382458).

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

6198019398 is a wasteful number, since it uses less digits than its factorization.

6198019398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951 (or 1942 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 54.

The square root of 6198019398 is about 78727.5009002572. The cubic root of 6198019398 is about 1836.8949084694.

The spelling of 6198019398 in words is "six billion, one hundred ninety-eight million, nineteen thousand, three hundred ninety-eight".