6405957464 has 16 divisors (see below), whose sum is σ = 12643337400. Its totient is φ = 3034400832.

The previous prime is 6405957403. The next prime is 6405957497. The reversal of 6405957464 is 4647595046.

It is a super-2 number, since 2×6405957464² = 82072582061154622592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 21072077 + ... + 21072380.

Almost surely, 2^6405957464 is an apocalyptic number.

It is an amenable number.

6405957464 is a deficient number, since it is larger than the sum of its proper divisors (6237379936).

6405957464 is a wasteful number, since it uses less digits than its factorization.

6405957464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42144482 (or 42144478 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 50.

The square root of 6405957464 is about 80037.2254891435. The cubic root of 6405957464 is about 1857.2114401700.

The spelling of 6405957464 in words is "six billion, four hundred five million, nine hundred fifty-seven thousand, four hundred sixty-four".