6198895779 has 4 divisors (see below), whose sum is σ = 8265194376. Its totient is φ = 4132597184.

The previous prime is 6198895777. The next prime is 6198895789. The reversal of 6198895779 is 9775988916.

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

It is a cyclic number.

It is not a de Polignac number, because 6198895779 - 2¹ = 6198895777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6198895777) 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, 1033149294 + ... + 1033149299.

It is an arithmetic number, because the mean of its divisors is an integer number (2066298594).

Almost surely, 2^6198895779 is an apocalyptic number.

6198895779 is a deficient number, since it is larger than the sum of its proper divisors (2066298597).

6198895779 is a wasteful number, since it uses less digits than its factorization.

6198895779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066298596.

The product of its digits is 68584320, while the sum is 69.

The square root of 6198895779 is about 78733.0666175274. The cubic root of 6198895779 is about 1836.9814814978.

The spelling of 6198895779 in words is "six billion, one hundred ninety-eight million, eight hundred ninety-five thousand, seven hundred seventy-nine".