6472067321520 has 60 divisors (see below), whose sum is σ = 21735359423856. Its totient is φ = 1725884618880.

The previous prime is 6472067321509. The next prime is 6472067321581. The reversal of 6472067321520 is 251237602746.

6472067321520 is a `hidden beast` number, since 6 + 47 + 2 + 0 + 67 + 3 + 21 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×6472067321520² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4494490476 + ... + 4494491915.

Almost surely, 2^{6472067321520} is an apocalyptic number.

6472067321520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6472067321520 is an abundant number, since it is smaller than the sum of its proper divisors (15263292102336).

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

6472067321520 is a wasteful number, since it uses less digits than its factorization.

6472067321520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8988982410 (or 8988982401 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 6472067321520 in words is "six trillion, four hundred seventy-two billion, sixty-seven million, three hundred twenty-one thousand, five hundred twenty".