6198517659 has 4 divisors (see below), whose sum is σ = 8264690216. Its totient is φ = 4132345104.

The previous prime is 6198517657. The next prime is 6198517667. The reversal of 6198517659 is 9567158916.

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

It is not a de Polignac number, because 6198517659 - 2¹ = 6198517657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6198517599 and 6198517608.

It is not an unprimeable number, because it can be changed into a prime (6198517657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033086274 + ... + 1033086279.

It is an arithmetic number, because the mean of its divisors is an integer number (2066172554).

Almost surely, 2^6198517659 is an apocalyptic number.

6198517659 is a deficient number, since it is larger than the sum of its proper divisors (2066172557).

6198517659 is a wasteful number, since it uses less digits than its factorization.

6198517659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066172556.

The product of its digits is 4082400, while the sum is 57.

The square root of 6198517659 is about 78730.6653026634. The cubic root of 6198517659 is about 1836.9441300304.

The spelling of 6198517659 in words is "six billion, one hundred ninety-eight million, five hundred seventeen thousand, six hundred fifty-nine".