6461536624 has 10 divisors (see below), whose sum is σ = 12519227240. Its totient is φ = 3230768304.

The previous prime is 6461536597. The next prime is 6461536633. The reversal of 6461536624 is 4266351646.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 201923004 + ... + 201923035.

It is an arithmetic number, because the mean of its divisors is an integer number (1251922724).

Almost surely, 2^6461536624 is an apocalyptic number.

It is an amenable number.

6461536624 is a deficient number, since it is larger than the sum of its proper divisors (6057690616).

6461536624 is a wasteful number, since it uses less digits than its factorization.

6461536624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403846047 (or 403846041 counting only the distinct ones).

The product of its digits is 622080, while the sum is 43.

The square root of 6461536624 is about 80383.6838170533. The cubic root of 6461536624 is about 1862.5671401048.

The spelling of 6461536624 in words is "six billion, four hundred sixty-one million, five hundred thirty-six thousand, six hundred twenty-four".