6490120407 has 16 divisors (see below), whose sum is σ = 8775375840. Its totient is φ = 4265851392.

The previous prime is 6490120397. The next prime is 6490120409. The reversal of 6490120407 is 7040210946.

It is a happy number.

It is not a de Polignac number, because 6490120407 - 2¹¹ = 6490118359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6490120409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 906819 + ... + 913947.

It is an arithmetic number, because the mean of its divisors is an integer number (548460990).

Almost surely, 2^6490120407 is an apocalyptic number.

6490120407 is a deficient number, since it is larger than the sum of its proper divisors (2285255433).

6490120407 is a wasteful number, since it uses less digits than its factorization.

6490120407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11362.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 6490120407 is about 80561.2835486129. The cubic root of 6490120407 is about 1865.3095684137.

The spelling of 6490120407 in words is "six billion, four hundred ninety million, one hundred twenty thousand, four hundred seven".