6198421579474 has 4 divisors (see below), whose sum is σ = 9297632369214. Its totient is φ = 3099210789736.

The previous prime is 6198421579403. The next prime is 6198421579481. The reversal of 6198421579474 is 4749751248916.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3819315850249 + 2379105729225 = 1954307^2 + 1542435^2 .

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1549605394867 + ... + 1549605394870.

Almost surely, 2^{6198421579474} is an apocalyptic number.

6198421579474 is a deficient number, since it is larger than the sum of its proper divisors (3099210789740).

6198421579474 is a wasteful number, since it uses less digits than its factorization.

6198421579474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099210789739.

The product of its digits is 121927680, while the sum is 67.

The spelling of 6198421579474 in words is "six trillion, one hundred ninety-eight billion, four hundred twenty-one million, five hundred seventy-nine thousand, four hundred seventy-four".