6490280784 has 80 divisors (see below), whose sum is σ = 18397072512. Its totient is φ = 1959320064.

The previous prime is 6490280777. The next prime is 6490280789. The reversal of 6490280784 is 4870820946.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6490280789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65052 + ... + 131195.

Almost surely, 2^6490280784 is an apocalyptic number.

It is an amenable number.

6490280784 is an abundant number, since it is smaller than the sum of its proper divisors (11906791728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6490280784 is a wasteful number, since it uses less digits than its factorization.

6490280784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196324 (or 196318 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 6490280784 is about 80562.2789151350. The cubic root of 6490280784 is about 1865.3249328070.

The spelling of 6490280784 in words is "six billion, four hundred ninety million, two hundred eighty thousand, seven hundred eighty-four".