6424906464 has 72 divisors (see below), whose sum is σ = 18438540120. Its totient is φ = 2121977088.

The previous prime is 6424906463. The next prime is 6424906489. The reversal of 6424906464 is 4646094246.

6424906464 is a `hidden beast` number, since 6 + 42 + 490 + 64 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×6424906464² = 82558846142297966592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6424906463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70942 + ... + 133725.

It is an arithmetic number, because the mean of its divisors is an integer number (256090835).

Almost surely, 2^6424906464 is an apocalyptic number.

It is an amenable number.

6424906464 is an abundant number, since it is smaller than the sum of its proper divisors (12013633656).

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

6424906464 is a wasteful number, since it uses less digits than its factorization.

6424906464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204792 (or 204781 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The square root of 6424906464 is about 80155.5142457461. The cubic root of 6424906464 is about 1859.0408651886.

The spelling of 6424906464 in words is "six billion, four hundred twenty-four million, nine hundred six thousand, four hundred sixty-four".