6469747680 has 96 divisors (see below), whose sum is σ = 22232423808. Its totient is φ = 1568422400.

The previous prime is 6469747679. The next prime is 6469747699. The reversal of 6469747680 is 867479646.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 6469747680.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 607386 + ... + 617945.

It is an arithmetic number, because the mean of its divisors is an integer number (231587748).

Almost surely, 2^6469747680 is an apocalyptic number.

6469747680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6469747680 is an abundant number, since it is smaller than the sum of its proper divisors (15762676128).

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

6469747680 is a wasteful number, since it uses less digits than its factorization.

6469747680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225360 (or 1225352 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 57.

The square root of 6469747680 is about 80434.7417475807. The cubic root of 6469747680 is about 1863.3557641516.

The spelling of 6469747680 in words is "six billion, four hundred sixty-nine million, seven hundred forty-seven thousand, six hundred eighty".