6387520632 has 16 divisors (see below), whose sum is σ = 15968801640. Its totient is φ = 2129173536.

The previous prime is 6387520631. The next prime is 6387520649. The reversal of 6387520632 is 2360257836.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6387520631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133073323 + ... + 133073370.

Almost surely, 2^6387520632 is an apocalyptic number.

It is an amenable number.

6387520632 is an abundant number, since it is smaller than the sum of its proper divisors (9581281008).

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

6387520632 is a wasteful number, since it uses less digits than its factorization.

6387520632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266146702 (or 266146698 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 6387520632 is about 79921.9658917372. The cubic root of 6387520632 is about 1855.4279962628.

The spelling of 6387520632 in words is "six billion, three hundred eighty-seven million, five hundred twenty thousand, six hundred thirty-two".