6490959887 has 8 divisors (see below), whose sum is σ = 6744115200. Its totient is φ = 6239759904.

The previous prime is 6490959877. The next prime is 6490959983. The reversal of 6490959887 is 7889590946.

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 6490959887 - 2¹⁰ = 6490958863 is a prime.

It is a super-4 number, since 4×6490959887⁴ (a number of 40 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6490959877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482063 + ... + 495344.

It is an arithmetic number, because the mean of its divisors is an integer number (843014400).

Almost surely, 2^6490959887 is an apocalyptic number.

6490959887 is a deficient number, since it is larger than the sum of its proper divisors (253155313).

6490959887 is a wasteful number, since it uses less digits than its factorization.

6490959887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977665.

The product of its (nonzero) digits is 39191040, while the sum is 65.

The square root of 6490959887 is about 80566.4935751830. The cubic root of 6490959887 is about 1865.3899892415.

The spelling of 6490959887 in words is "six billion, four hundred ninety million, nine hundred fifty-nine thousand, eight hundred eighty-seven".