6461642312 has 32 divisors (see below), whose sum is σ = 12416959800. Its totient is φ = 3150528000.

The previous prime is 6461642309. The next prime is 6461642351. The reversal of 6461642312 is 2132461646.

It can be written as a sum of positive squares in 4 ways, for example, as 3714414916 + 2747227396 = 60946^2 + 52414^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1056062 + ... + 1062162.

Almost surely, 2^6461642312 is an apocalyptic number.

It is an amenable number.

6461642312 is a deficient number, since it is larger than the sum of its proper divisors (5955317488).

6461642312 is a wasteful number, since it uses less digits than its factorization.

6461642312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9377 (or 9373 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 6461642312 is about 80384.3412114573. The cubic root of 6461642312 is about 1862.5772950640.

The spelling of 6461642312 in words is "six billion, four hundred sixty-one million, six hundred forty-two thousand, three hundred twelve".