6489440199 has 32 divisors (see below), whose sum is σ = 10516281600. Its totient is φ = 3922382880.

The previous prime is 6489440173. The next prime is 6489440201. The reversal of 6489440199 is 9910449846.

It is a happy number.

6489440199 is a `hidden beast` number, since 6 + 4 + 8 + 9 + 440 + 199 = 666.

It is not a de Polignac number, because 6489440199 - 2¹⁶ = 6489374663 is a prime.

It is a super-2 number, since 2×6489440199² = 84225668192794319202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6489442199) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81492 + ... + 140070.

It is an arithmetic number, because the mean of its divisors is an integer number (328633800).

Almost surely, 2^6489440199 is an apocalyptic number.

6489440199 is a deficient number, since it is larger than the sum of its proper divisors (4026841401).

6489440199 is a wasteful number, since it uses less digits than its factorization.

6489440199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58972 (or 58966 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 6489440199 is about 80557.0617574896. The cubic root of 6489440199 is about 1865.2444005000.

The spelling of 6489440199 in words is "six billion, four hundred eighty-nine million, four hundred forty thousand, one hundred ninety-nine".