6453720960 has 128 divisors (see below), whose sum is σ = 20959702560. Its totient is φ = 1688494080.

The previous prime is 6453720881. The next prime is 6453720983. The reversal of 6453720960 is 690273546.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70050 + ... + 133470.

Almost surely, 2^6453720960 is an apocalyptic number.

6453720960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6453720960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10479851280).

6453720960 is an abundant number, since it is smaller than the sum of its proper divisors (14505981600).

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

6453720960 is a wasteful number, since it uses less digits than its factorization.

6453720960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63496 (or 63484 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 6453720960 is about 80335.0543660736. The cubic root of 6453720960 is about 1861.8158702937.

The spelling of 6453720960 in words is "six billion, four hundred fifty-three million, seven hundred twenty thousand, nine hundred sixty".