6488199698 has 6 divisors (see below), whose sum is σ = 9732470421. Its totient is φ = 3244042892.

The previous prime is 6488199691. The next prime is 6488199703. The reversal of 6488199698 is 8969918846.

It can be written as a sum of positive squares in 2 ways, for example, as 5219629009 + 1268570689 = 72247^2 + 35617^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=56957.

It is a super-2 number, since 2×6488199698² = 84193470642254582408, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6488199691) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 85436 + ... + 142392.

Almost surely, 2^6488199698 is an apocalyptic number.

6488199698 is a deficient number, since it is larger than the sum of its proper divisors (3244270723).

6488199698 is an frugal number, since it uses more digits than its factorization.

6488199698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113916 (or 56959 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 68.

The square root of 6488199698 is about 80549.3618720844. The cubic root of 6488199698 is about 1865.1255415063.

The spelling of 6488199698 in words is "six billion, four hundred eighty-eight million, one hundred ninety-nine thousand, six hundred ninety-eight".