6461563652 has 24 divisors (see below), whose sum is σ = 11536499520. Its totient is φ = 3165774560.

The previous prime is 6461563639. The next prime is 6461563657. The reversal of 6461563652 is 2563651646.

It is not an unprimeable number, because it can be changed into a prime (6461563657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29378 + ... + 117414.

It is an arithmetic number, because the mean of its divisors is an integer number (480687480).

Almost surely, 2^6461563652 is an apocalyptic number.

It is an amenable number.

6461563652 is a deficient number, since it is larger than the sum of its proper divisors (5074935868).

6461563652 is a wasteful number, since it uses less digits than its factorization.

6461563652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88411 (or 88409 counting only the distinct ones).

The product of its digits is 777600, while the sum is 44.

The square root of 6461563652 is about 80383.8519355722. The cubic root of 6461563652 is about 1862.5697370822.

The spelling of 6461563652 in words is "six billion, four hundred sixty-one million, five hundred sixty-three thousand, six hundred fifty-two".