6490369152 has 48 divisors (see below), whose sum is σ = 18676716630. Its totient is φ = 2163456000.

The previous prime is 6490369121. The next prime is 6490369153. The reversal of 6490369152 is 2519630946.

6490369152 is a `hidden beast` number, since 6 + 490 + 3 + 6 + 9 + 152 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6383370816 + 106998336 = 79896^2 + 10344^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 6490369098 and 6490369107.

It is not an unprimeable number, because it can be changed into a prime (6490369153) 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 5 ways as a sum of consecutive naturals, for example, 2815849 + ... + 2818152.

Almost surely, 2^6490369152 is an apocalyptic number.

It is an amenable number.

6490369152 is an abundant number, since it is smaller than the sum of its proper divisors (12186347478).

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

6490369152 is a wasteful number, since it uses less digits than its factorization.

6490369152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634021 (or 5634006 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 6490369152 is about 80562.8273585281. The cubic root of 6490369152 is about 1865.3333985058. Note that the first 4 decimals are identical.

The spelling of 6490369152 in words is "six billion, four hundred ninety million, three hundred sixty-nine thousand, one hundred fifty-two".