6489927916880 has 80 divisors (see below), whose sum is σ = 16004491272000. Its totient is φ = 2440567434240.

The previous prime is 6489927916783. The next prime is 6489927916939. The reversal of 6489927916880 is 886197299846.

It is a tau number, because it is divible by the number of its divisors (80).

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, 16097405 + ... + 16495644.

It is an arithmetic number, because the mean of its divisors is an integer number (200056140900).

Almost surely, 2^{6489927916880} is an apocalyptic number.

It is an amenable number.

6489927916880 is an abundant number, since it is smaller than the sum of its proper divisors (9514563355120).

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

6489927916880 is a wasteful number, since it uses less digits than its factorization.

6489927916880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32593212 (or 32593206 counting only the distinct ones).

The product of its (nonzero) digits is 752467968, while the sum is 77.

The spelling of 6489927916880 in words is "six trillion, four hundred eighty-nine billion, nine hundred twenty-seven million, nine hundred sixteen thousand, eight hundred eighty".