6520767817412 has 48 divisors (see below), whose sum is σ = 11676138512640. Its totient is φ = 3184993066752.

The previous prime is 6520767817411. The next prime is 6520767817427. The reversal of 6520767817412 is 2147187670256.

It is not an unprimeable number, because it can be changed into a prime (6520767817411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 723480218 + ... + 723489230.

It is an arithmetic number, because the mean of its divisors is an integer number (243252885680).

Almost surely, 2^{6520767817412} is an apocalyptic number.

It is an amenable number.

6520767817412 is a deficient number, since it is larger than the sum of its proper divisors (5155370695228).

6520767817412 is a wasteful number, since it uses less digits than its factorization.

6520767817412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15900 (or 15898 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 6520767817412 in words is "six trillion, five hundred twenty billion, seven hundred sixty-seven million, eight hundred seventeen thousand, four hundred twelve".