6198789649 has 8 divisors (see below), whose sum is σ = 6705558272. Its totient is φ = 5696298000.

The previous prime is 6198789617. The next prime is 6198789689. The reversal of 6198789649 is 9469878916.

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

It is a cyclic number.

It is not a de Polignac number, because 6198789649 - 2⁵ = 6198789617 is a prime.

It is a super-2 number, since 2×6198789649² = 76849986225099086402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6198789689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066227 + ... + 1072024.

It is an arithmetic number, because the mean of its divisors is an integer number (838194784).

Almost surely, 2^6198789649 is an apocalyptic number.

It is an amenable number.

6198789649 is a deficient number, since it is larger than the sum of its proper divisors (506768623).

6198789649 is a wasteful number, since it uses less digits than its factorization.

6198789649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138487.

The product of its digits is 47029248, while the sum is 67.

The square root of 6198789649 is about 78732.3926284474. The cubic root of 6198789649 is about 1836.9709979126.

The spelling of 6198789649 in words is "six billion, one hundred ninety-eight million, seven hundred eighty-nine thousand, six hundred forty-nine".