6432513540 has 48 divisors (see below), whose sum is σ = 18350877888. Its totient is φ = 1682971264.

The previous prime is 6432513511. The next prime is 6432513583. The reversal of 6432513540 is 453152346.

It is an unprimeable number.

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, 1008222 + ... + 1014581.

It is an arithmetic number, because the mean of its divisors is an integer number (382309956).

Almost surely, 2^6432513540 is an apocalyptic number.

6432513540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6432513540 is an abundant number, since it is smaller than the sum of its proper divisors (11918364348).

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

6432513540 is a wasteful number, since it uses less digits than its factorization.

6432513540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022868 (or 2022866 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 6432513540 is about 80202.9521900535. The cubic root of 6432513540 is about 1859.7742759956.

Adding to 6432513540 its reverse (453152346), we get a palindrome (6885665886).

The spelling of 6432513540 in words is "six billion, four hundred thirty-two million, five hundred thirteen thousand, five hundred forty".