6480547969536 has 400 divisors, whose sum is σ = 19530224271360. Its totient is φ = 2139308236800.

The previous prime is 6480547969507. The next prime is 6480547969543. The reversal of 6480547969536 is 6359697450846.

6480547969536 is a `hidden beast` number, since 6 + 4 + 80 + 5 + 4 + 7 + 9 + 6 + 9 + 536 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5630362561 + ... + 5630363711.

Almost surely, 2^{6480547969536} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6480547969536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9765112135680).

6480547969536 is an abundant number, since it is smaller than the sum of its proper divisors (13049676301824).

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

6480547969536 is a wasteful number, since it uses less digits than its factorization.

6480547969536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377 (or 2352 counting only the distinct ones).

The product of its (nonzero) digits is 1175731200, while the sum is 72.

The spelling of 6480547969536 in words is "six trillion, four hundred eighty billion, five hundred forty-seven million, nine hundred sixty-nine thousand, five hundred thirty-six".